Home / 7,649.13-11,475.92-2,719.15

Finding the Fourth Proportional to 7,649.13, 11,475.92 and 2,719.15

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Solution

The fourth proportional to 7,649.13, 11,475.92 and 2,719.15 is: 4,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.13 : 11,475.92 = 2,719.15 : x
  2. Step 2: Convert to fraction form
    7,649.13/11,475.92 = 2,719.15/x
  3. Step 3: Cross multiply
    7,649.13x = 11,475.92 × 2,719.15
  4. Step 4: Simplify right side
    7,649.13x = 31,204,747.87
  5. Step 5: Solve for x
    x = 31,204,747.87/7,649.13
  6. Step 6: Final answer
    x = 4,079.52

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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.