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Finding the Fourth Proportional to 4,979.92, 7,469.88 and 1,517.17

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Solution

The fourth proportional to 4,979.92, 7,469.88 and 1,517.17 is: 2,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.92 : 7,469.88 = 1,517.17 : x
  2. Step 2: Convert to fraction form
    4,979.92/7,469.88 = 1,517.17/x
  3. Step 3: Cross multiply
    4,979.92x = 7,469.88 × 1,517.17
  4. Step 4: Simplify right side
    4,979.92x = 11,333,058.04
  5. Step 5: Solve for x
    x = 11,333,058.04/4,979.92
  6. Step 6: Final answer
    x = 2,275.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.