Home / 7,432.32-11,144.81-3,679.75

Finding the Fourth Proportional to 7,432.32, 11,144.81 and 3,679.75

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Solution

The fourth proportional to 7,432.32, 11,144.81 and 3,679.75 is: 5,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.32 : 11,144.81 = 3,679.75 : x
  2. Step 2: Convert to fraction form
    7,432.32/11,144.81 = 3,679.75/x
  3. Step 3: Cross multiply
    7,432.32x = 11,144.81 × 3,679.75
  4. Step 4: Simplify right side
    7,432.32x = 41,010,101.36
  5. Step 5: Solve for x
    x = 41,010,101.36/7,432.32
  6. Step 6: Final answer
    x = 5,517.81

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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.