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Finding the Fourth Proportional to 4,702.38, 6,489.51 and 2,713.20

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Solution

The fourth proportional to 4,702.38, 6,489.51 and 2,713.20 is: 3,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.38 : 6,489.51 = 2,713.20 : x
  2. Step 2: Convert to fraction form
    4,702.38/6,489.51 = 2,713.20/x
  3. Step 3: Cross multiply
    4,702.38x = 6,489.51 × 2,713.20
  4. Step 4: Simplify right side
    4,702.38x = 17,607,338.53
  5. Step 5: Solve for x
    x = 17,607,338.53/4,702.38
  6. Step 6: Final answer
    x = 3,744.35

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1.5x scale

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.