In a pair of similar rectangles, the ratio of the widths

Is 3:4. What is the ratio of the lengths?

3:4

4:3

To find the ratio of the lengths in a pair of similar rectangles, you need to know the ratio of the widths, which you have given as 3:4.

To solve this, you can set up a proportion:

Ratio of widths = 3:4

Let "x" represent the ratio of the lengths:

Ratio of lengths = x

Setting up the proportion:

3 / 4 = x / 1

To solve for x, you can cross multiply:

3 * 1 = 4 * x
3 = 4x
x = 3/4

Therefore, the ratio of the lengths in the pair of similar rectangles is 3:4.