Home / 5,388.72-8,082.52-3,387.48

Finding the Fourth Proportional to 5,388.72, 8,082.52 and 3,387.48

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Solution

The fourth proportional to 5,388.72, 8,082.52 and 3,387.48 is: 5,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.72 : 8,082.52 = 3,387.48 : x
  2. Step 2: Convert to fraction form
    5,388.72/8,082.52 = 3,387.48/x
  3. Step 3: Cross multiply
    5,388.72x = 8,082.52 × 3,387.48
  4. Step 4: Simplify right side
    5,388.72x = 27,379,374.85
  5. Step 5: Solve for x
    x = 27,379,374.85/5,388.72
  6. Step 6: Final answer
    x = 5,080.87

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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.