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Finding the Fourth Proportional to 3,997.91, 5,520.60 and 2,508.39

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Solution

The fourth proportional to 3,997.91, 5,520.60 and 2,508.39 is: 3,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.91 : 5,520.60 = 2,508.39 : x
  2. Step 2: Convert to fraction form
    3,997.91/5,520.60 = 2,508.39/x
  3. Step 3: Cross multiply
    3,997.91x = 5,520.60 × 2,508.39
  4. Step 4: Simplify right side
    3,997.91x = 13,847,817.83
  5. Step 5: Solve for x
    x = 13,847,817.83/3,997.91
  6. Step 6: Final answer
    x = 3,463.76

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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.