The phrase "are relatively consistent with" is correct and usable in written English.
It can be used when discussing how two or more sets of data, findings, or statements align or agree with each other to a certain degree.
Example: "The results of the study are relatively consistent with previous research on the topic, suggesting a similar trend."
Alternatives: "are fairly aligned with" or "are somewhat in agreement with".
These findings are relatively consistent with the theoretical assumptions.
For northern damage sites along the Bungo Channel, the smaller-earthquake scenario and sub-slip model 3 are relatively consistent with historical tsunami heights.
That explains why foreclosure rates in these towns are double or triple the national average of 3%, even though unemployment rates are relatively consistent with the national average.
Though the recommended frequency of administration of the medications and amounts given are relatively consistent with label recommendations (more so for oxytetracycline than penicillin), duration of treatment is respected by less than half of pastoralists for both medications.
In a case study of Nanmeitou ore deposit in China, the geological bodies' boundaries are well identified and the depth estimates of the focus area are relatively consistent with the drilling data, which can provide effective reference for subsequent drilling target selection.
These findings are relatively consistent with those reported from a video review study of concussion signs during Australia Football League (AFL) match play, which found that intra-rater reliability was generally better than inter-rater reliability, and blank or vacant stare was the sign with the lowest agreement [25].
Both have been relatively consistent with selection.
Although I've not yet visited Sascha often enough to make a full appraisal, I'm betting the appeal of the food in one part will be relatively consistent with the appeal in other part.
The eight-point lead in the latest Times/CBS News Poll is relatively consistent with the findings of most public polls over the last month, and could explain both why Mr. Lazio was attacking Mrs. Clinton so intensely during the last debate, on Friday night, and the air of confidence that has settled in around Mrs. Clinton's camp in recent days.
The Science article was a striking repudiation of the generally held belief that solar activity is relatively consistent, with the number of sunspots rising and falling in an 11-year cycle, and it raised the possibility that irregularities in the behavior of the sun could have an effect on Earth and its climate.
