Summary

We learned that ratios are value comparisons, and proportions are equal ratios. Ratios can be written with colons or as fractions. So, to compare the number of girls to boys in a litter of puppies, we can write 2:4 or 2/4 to say that there are two girls to four boys. A proportion occurs when two ratios are forced to be equal. This selection will allow you to find a second ratio that is in the same proportion as the first.