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Finding the Fourth Proportional to 5,677.91, 8,516.87 and 1,517.70

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Solution

The fourth proportional to 5,677.91, 8,516.87 and 1,517.70 is: 2,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.91 : 8,516.87 = 1,517.70 : x
  2. Step 2: Convert to fraction form
    5,677.91/8,516.87 = 1,517.70/x
  3. Step 3: Cross multiply
    5,677.91x = 8,516.87 × 1,517.70
  4. Step 4: Simplify right side
    5,677.91x = 12,926,035.73
  5. Step 5: Solve for x
    x = 12,926,035.73/5,677.91
  6. Step 6: Final answer
    x = 2,276.55

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Double scale
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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.