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Finding the Fourth Proportional to 2,471.87, 3,411.18 and 1,352.81

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Solution

The fourth proportional to 2,471.87, 3,411.18 and 1,352.81 is: 1,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.87 : 3,411.18 = 1,352.81 : x
  2. Step 2: Convert to fraction form
    2,471.87/3,411.18 = 1,352.81/x
  3. Step 3: Cross multiply
    2,471.87x = 3,411.18 × 1,352.81
  4. Step 4: Simplify right side
    2,471.87x = 4,614,678.42
  5. Step 5: Solve for x
    x = 4,614,678.42/2,471.87
  6. Step 6: Final answer
    x = 1,866.88

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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.