Question
Download Solution PDFIf the ratio of third proportional to A and B and fourth proportional to A, B and C is 3 ∶ 4, then the ratio of B : C is ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGIVEN :
The ratio of third proportional of A & B and the fourth proportional of A, B & C is 3 ∶ 4
CONCEPT :
Ratio and its types
FORMULA USED :
1) The third proportion of a, b is b2/a.
2) The fourth proportional of a, b, c is bc/a
CALCULATION :
⇒ Fourth proportional of A, B & C = BC/A
⇒ (B2/A)/(BC/A) = 3/4
⇒ B/C = 3/4
⇒ B ∶ C = 3 ∶ 4
The answer is 3 ∶ 4.
Last updated on Jun 30, 2025
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