Question

What is value of x in 
4.8:6.4::6.4:x

Answer 1

4.8:6.4::6.4:x
This can be written as:
$\frac{4.8}{6.4}$=$\frac{6.4}{x}$
Now cross-multiplying,
⇒4.8x= 6.4×6.4
⇒ x = $\frac{6.4×6.4}{4.8}$
⇒ x=8.533

Answer 2

given us 4.8:6.4::6.4: x 4.8x=40.96 x=40.96/4.8=8.53