Home / 7,691.12-11,526.44-3,531.76

Finding the Fourth Proportional to 7,691.12, 11,526.44 and 3,531.76

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Solution

The fourth proportional to 7,691.12, 11,526.44 and 3,531.76 is: 5,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.12 : 11,526.44 = 3,531.76 : x
  2. Step 2: Convert to fraction form
    7,691.12/11,526.44 = 3,531.76/x
  3. Step 3: Cross multiply
    7,691.12x = 11,526.44 × 3,531.76
  4. Step 4: Simplify right side
    7,691.12x = 40,708,619.73
  5. Step 5: Solve for x
    x = 40,708,619.73/7,691.12
  6. Step 6: Final answer
    x = 5,292.94

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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.