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Finding the Fourth Proportional to 3,666.87, 5,500.15 and 2,635.49

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Solution

The fourth proportional to 3,666.87, 5,500.15 and 2,635.49 is: 3,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.87 : 5,500.15 = 2,635.49 : x
  2. Step 2: Convert to fraction form
    3,666.87/5,500.15 = 2,635.49/x
  3. Step 3: Cross multiply
    3,666.87x = 5,500.15 × 2,635.49
  4. Step 4: Simplify right side
    3,666.87x = 14,495,581.37
  5. Step 5: Solve for x
    x = 14,495,581.37/3,666.87
  6. Step 6: Final answer
    x = 3,953.12

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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.