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Finding the Fourth Proportional to 3,687.87, 5,089.17 and 2,009.24

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Solution

The fourth proportional to 3,687.87, 5,089.17 and 2,009.24 is: 2,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.87 : 5,089.17 = 2,009.24 : x
  2. Step 2: Convert to fraction form
    3,687.87/5,089.17 = 2,009.24/x
  3. Step 3: Cross multiply
    3,687.87x = 5,089.17 × 2,009.24
  4. Step 4: Simplify right side
    3,687.87x = 10,225,363.93
  5. Step 5: Solve for x
    x = 10,225,363.93/3,687.87
  6. Step 6: Final answer
    x = 2,772.70

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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.