Question

determine if the following numbers are in proportion 3,18,7,49​

Answer 1

Answer:

Step-by-step explanation:

If a : b = c : d then d is the fourth proportional

if a : b = c : d are in proportion then a/b = c/d

i.e. ad = bc

i.e. Product of extremes = Product of means

This is called cross product rule

3 , 18 , 7 , 49

→ 147 ≠ 126

∴ Given no: are not in proportion