Home / 1,261.64-1,741.11-702.08

Finding the Fourth Proportional to 1,261.64, 1,741.11 and 702.08

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Solution

The fourth proportional to 1,261.64, 1,741.11 and 702.08 is: 968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.64 : 1,741.11 = 702.08 : x
  2. Step 2: Convert to fraction form
    1,261.64/1,741.11 = 702.08/x
  3. Step 3: Cross multiply
    1,261.64x = 1,741.11 × 702.08
  4. Step 4: Simplify right side
    1,261.64x = 1,222,402.86
  5. Step 5: Solve for x
    x = 1,222,402.86/1,261.64
  6. Step 6: Final answer
    x = 968.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.