Home / 5,517.80-8,279.28-2,744.36

Finding the Fourth Proportional to 5,517.80, 8,279.28 and 2,744.36

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Solution

The fourth proportional to 5,517.80, 8,279.28 and 2,744.36 is: 4,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.80 : 8,279.28 = 2,744.36 : x
  2. Step 2: Convert to fraction form
    5,517.80/8,279.28 = 2,744.36/x
  3. Step 3: Cross multiply
    5,517.80x = 8,279.28 × 2,744.36
  4. Step 4: Simplify right side
    5,517.80x = 22,721,324.86
  5. Step 5: Solve for x
    x = 22,721,324.86/5,517.80
  6. Step 6: Final answer
    x = 4,117.82

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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.