Home / 5,141.59-7,712.66-1,631.87

Finding the Fourth Proportional to 5,141.59, 7,712.66 and 1,631.87

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Solution

The fourth proportional to 5,141.59, 7,712.66 and 1,631.87 is: 2,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.59 : 7,712.66 = 1,631.87 : x
  2. Step 2: Convert to fraction form
    5,141.59/7,712.66 = 1,631.87/x
  3. Step 3: Cross multiply
    5,141.59x = 7,712.66 × 1,631.87
  4. Step 4: Simplify right side
    5,141.59x = 12,586,052.91
  5. Step 5: Solve for x
    x = 12,586,052.91/5,141.59
  6. Step 6: Final answer
    x = 2,447.89

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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.