Home / 5,310.28-7,967.82-2,387.80

Finding the Fourth Proportional to 5,310.28, 7,967.82 and 2,387.80

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Solution

The fourth proportional to 5,310.28, 7,967.82 and 2,387.80 is: 3,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.28 : 7,967.82 = 2,387.80 : x
  2. Step 2: Convert to fraction form
    5,310.28/7,967.82 = 2,387.80/x
  3. Step 3: Cross multiply
    5,310.28x = 7,967.82 × 2,387.80
  4. Step 4: Simplify right side
    5,310.28x = 19,025,560.60
  5. Step 5: Solve for x
    x = 19,025,560.60/5,310.28
  6. Step 6: Final answer
    x = 3,582.78

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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.