Home / 8,531.28-12,798.79-2,608.66

Finding the Fourth Proportional to 8,531.28, 12,798.79 and 2,608.66

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Solution

The fourth proportional to 8,531.28, 12,798.79 and 2,608.66 is: 3,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.28 : 12,798.79 = 2,608.66 : x
  2. Step 2: Convert to fraction form
    8,531.28/12,798.79 = 2,608.66/x
  3. Step 3: Cross multiply
    8,531.28x = 12,798.79 × 2,608.66
  4. Step 4: Simplify right side
    8,531.28x = 33,387,691.52
  5. Step 5: Solve for x
    x = 33,387,691.52/8,531.28
  6. Step 6: Final answer
    x = 3,913.56

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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.