Question

what least number should be added to each of the numbers 5,11,19,and 37 , so that the resulting numbers are proportional​

Answer 1

Lets the number is x. so

(5+x):(11+x)::(19+x):(37+x)

185+42x+x^2=209+30x+x^2

12x=24. so x=2.

(5+2):(11+2)::(19+2):(37+2)

7:13::21:39

7*39=13*21

273=273.

Hence,

X=2

Therefore, least number is 2.

Answer 2

Step-by-step explanation:

Solution. Let x be added to 5, 11, 19 and 37 to make them in proportion. ∴ Least number to be added = 2