Home / 7,687.97-11,531.96-2,141.33

Finding the Fourth Proportional to 7,687.97, 11,531.96 and 2,141.33

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Solution

The fourth proportional to 7,687.97, 11,531.96 and 2,141.33 is: 3,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.97 : 11,531.96 = 2,141.33 : x
  2. Step 2: Convert to fraction form
    7,687.97/11,531.96 = 2,141.33/x
  3. Step 3: Cross multiply
    7,687.97x = 11,531.96 × 2,141.33
  4. Step 4: Simplify right side
    7,687.97x = 24,693,708.43
  5. Step 5: Solve for x
    x = 24,693,708.43/7,687.97
  6. Step 6: Final answer
    x = 3,211.99

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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.