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Finding the Fourth Proportional to 4,979.87, 7,463.42 and 2,509.17

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Solution

The fourth proportional to 4,979.87, 7,463.42 and 2,509.17 is: 3,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.87 : 7,463.42 = 2,509.17 : x
  2. Step 2: Convert to fraction form
    4,979.87/7,463.42 = 2,509.17/x
  3. Step 3: Cross multiply
    4,979.87x = 7,463.42 × 2,509.17
  4. Step 4: Simplify right side
    4,979.87x = 18,726,989.56
  5. Step 5: Solve for x
    x = 18,726,989.56/4,979.87
  6. Step 6: Final answer
    x = 3,760.54

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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.