Question

if 2,4 are in continued proportion find x

Answer 1

the equation for this would be 2:4::4:x
product of extreme terms = product of mean terms
2*x=4*4
2x=16
x=16/2
x=8

Answer 2

product of extreme = product of mean
2×x=4×4
2x=16
x=16/2=8 ans...