Home / 8,231.94-12,349.13-2,387.79

Finding the Fourth Proportional to 8,231.94, 12,349.13 and 2,387.79

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Solution

The fourth proportional to 8,231.94, 12,349.13 and 2,387.79 is: 3,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.94 : 12,349.13 = 2,387.79 : x
  2. Step 2: Convert to fraction form
    8,231.94/12,349.13 = 2,387.79/x
  3. Step 3: Cross multiply
    8,231.94x = 12,349.13 × 2,387.79
  4. Step 4: Simplify right side
    8,231.94x = 29,487,117.18
  5. Step 5: Solve for x
    x = 29,487,117.18/8,231.94
  6. Step 6: Final answer
    x = 3,582.04

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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.