Question

Width in ratio 3:4 in scale drawing height 4.5cm what is the width

Answer 1

To find the width, you have to divide 4.4 with 4. 4.5/4 = 1.125 The width is 1.125 or 1 (1/8).

Answer 2

You need help with the width? Mk, Ill help you out a bit

So if the height of the widescreen tv is 4.5, then you have
9/16 = 4.5/x

Cross multiply, and you have 9x = 72
Will let you solve for x.

Do the same for the 3/4.

Good luck!