Home / 5,158.91-7,732.01-2,381.82

Finding the Fourth Proportional to 5,158.91, 7,732.01 and 2,381.82

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Solution

The fourth proportional to 5,158.91, 7,732.01 and 2,381.82 is: 3,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.91 : 7,732.01 = 2,381.82 : x
  2. Step 2: Convert to fraction form
    5,158.91/7,732.01 = 2,381.82/x
  3. Step 3: Cross multiply
    5,158.91x = 7,732.01 × 2,381.82
  4. Step 4: Simplify right side
    5,158.91x = 18,416,244.15
  5. Step 5: Solve for x
    x = 18,416,244.15/5,158.91
  6. Step 6: Final answer
    x = 3,569.80

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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.