Home / 8,731.90-13,098.62-2,491.79

Finding the Fourth Proportional to 8,731.90, 13,098.62 and 2,491.79

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Solution

The fourth proportional to 8,731.90, 13,098.62 and 2,491.79 is: 3,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.90 : 13,098.62 = 2,491.79 : x
  2. Step 2: Convert to fraction form
    8,731.90/13,098.62 = 2,491.79/x
  3. Step 3: Cross multiply
    8,731.90x = 13,098.62 × 2,491.79
  4. Step 4: Simplify right side
    8,731.90x = 32,639,010.33
  5. Step 5: Solve for x
    x = 32,639,010.33/8,731.90
  6. Step 6: Final answer
    x = 3,737.91

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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.