Home / 7,989.29-11,985.11-2,441.90

Finding the Fourth Proportional to 7,989.29, 11,985.11 and 2,441.90

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Solution

The fourth proportional to 7,989.29, 11,985.11 and 2,441.90 is: 3,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.29 : 11,985.11 = 2,441.90 : x
  2. Step 2: Convert to fraction form
    7,989.29/11,985.11 = 2,441.90/x
  3. Step 3: Cross multiply
    7,989.29x = 11,985.11 × 2,441.90
  4. Step 4: Simplify right side
    7,989.29x = 29,266,367.97
  5. Step 5: Solve for x
    x = 29,266,367.97/7,989.29
  6. Step 6: Final answer
    x = 3,663.20

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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.