The lengths in the figure are proportional.

In the first figure- 3 on top, and 2
on the bottom

In the second figure- 4 1/2 on top, and
x on the bottom

These are the choices that are written
on my assignment. One is the correct
answer.

A. 4 1/2
B. 3
C. 2 1/2
D. 2

I tried working this to be proportional
and keep coming up with answer (B) 3

Will you please help?

If I'm interpreting this correctly, then you can set up this way:

3/2 = 4.5/x -->4 1/2 is the same as 4.5

Cross multiply:
3x = 9
x = 3

Choice B looks to be the one!

I hope this helps and is what you were asking.