Home / 7,687.22-11,531.70-2,422.62

Finding the Fourth Proportional to 7,687.22, 11,531.70 and 2,422.62

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Solution

The fourth proportional to 7,687.22, 11,531.70 and 2,422.62 is: 3,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.22 : 11,531.70 = 2,422.62 : x
  2. Step 2: Convert to fraction form
    7,687.22/11,531.70 = 2,422.62/x
  3. Step 3: Cross multiply
    7,687.22x = 11,531.70 × 2,422.62
  4. Step 4: Simplify right side
    7,687.22x = 27,936,927.05
  5. Step 5: Solve for x
    x = 27,936,927.05/7,687.22
  6. Step 6: Final answer
    x = 3,634.21

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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.