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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a proportion of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a proportion of" is correct and usable in written English.
You can use it to refer to a part or portion of something when compared to the whole. For example, "A proportion of the population is expected to be vaccinated by the end of the year."
✓ Grammatically correct
News & Media
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
They represent a proportion of the UK.
News & Media
Then it measures their reliability as a proportion of this.
News & Media
Or as a proportion of a country's total indigenous population.
News & Media
Tuition as a proportion of income has risen.
News & Media
Exports have fallen as a proportion of GDP for decades.
News & Media
In stark contrast, the government is vowing to reduce government spending as a proportion of GDP and not to raise tax as a proportion of GDP.
News & Media
These are levied as a proportion of wages.
News & Media
Spending as a proportion of GDP is steady.
News & Media
This is insignificant as a proportion of the total population.
News & Media
Public investment as a proportion of GDP has been declining.
News & Media
He's got a proportion of his savings in gold.
News & Media
Expert writing Tips
Best practice
When using "a proportion of", ensure the context clearly defines the whole to which the proportion relates. This prevents ambiguity and enhances clarity.
Common error
Avoid using "a proportion of" when the actual quantity is negligible or insignificant. Using a phrase like "a tiny fraction of" might be more accurate.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a proportion of" functions as a determiner phrase followed by a prepositional phrase, modifying a noun to indicate a part, share, or quantity relative to a whole. Ludwig provides many examples of this usage in various contexts.
Frequent in
News & Media
67%
Science
12%
Formal & Business
8%
Less common in
Academia
5%
Encyclopedias
4%
Wiki
4%
Ludwig's WRAP-UP
In summary, "a proportion of" is a versatile phrase used to indicate a portion or share of something, as confirmed by Ludwig AI. It's grammatically correct and sees frequent use across various contexts, particularly in news and media. While alternatives like "a percentage of" or "a share of" may sometimes be appropriate, "a proportion of" provides a general way to quantify parts of a whole, ensuring clarity and precision in writing. With a neutral tone and broad applicability, this phrase remains a valuable tool for effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a percentage of
Focuses specifically on expressing the part as a value out of one hundred.
a share of
Suggests a part allocated or belonging to someone or something.
a fraction of
Implies a smaller part of the whole, often used when the proportion is relatively small.
a segment of
Emphasizes a distinct part or section of a larger group or entity.
a portion of
Highlights a part or serving that is divided or allocated.
a quantity of
Refers to an amount or number of something, often used for measurable items.
some part of
Indicates an unspecified amount or section of the whole.
a certain amount of
Specifies an indefinite quantity that is known or relevant.
a division of
Highlights the act of separating or allocating something into parts.
a piece of
Suggests a tangible or distinct part taken from a larger entity.
FAQs
How can I use "a proportion of" in a sentence?
Use "a proportion of" to indicate a part or share of a whole. For example, "A proportion of the profits will be donated to charity."
What are some alternatives to "a proportion of"?
You can use alternatives like "a percentage of", "a share of", or "a fraction of" depending on the context.
Is it better to say "a proportion of" or "the proportion of"?
"A proportion of" refers to an unspecified part of a whole. "The proportion of" refers to a specific, often calculated, relationship between a part and a whole.
What's the difference between "a proportion of" and "part of"?
"Part of" is more general and can refer to any piece of a whole. "A proportion of" implies a quantitative relationship between the part and the whole.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested