Home / 7,581.78-11,375.98-2,654.96

Finding the Fourth Proportional to 7,581.78, 11,375.98 and 2,654.96

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Solution

The fourth proportional to 7,581.78, 11,375.98 and 2,654.96 is: 3,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.78 : 11,375.98 = 2,654.96 : x
  2. Step 2: Convert to fraction form
    7,581.78/11,375.98 = 2,654.96/x
  3. Step 3: Cross multiply
    7,581.78x = 11,375.98 × 2,654.96
  4. Step 4: Simplify right side
    7,581.78x = 30,202,708.34
  5. Step 5: Solve for x
    x = 30,202,708.34/7,581.78
  6. Step 6: Final answer
    x = 3,983.59

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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.