Home / 7,379.28-11,062.88-3,432.99

Finding the Fourth Proportional to 7,379.28, 11,062.88 and 3,432.99

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Solution

The fourth proportional to 7,379.28, 11,062.88 and 3,432.99 is: 5,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.28 : 11,062.88 = 3,432.99 : x
  2. Step 2: Convert to fraction form
    7,379.28/11,062.88 = 3,432.99/x
  3. Step 3: Cross multiply
    7,379.28x = 11,062.88 × 3,432.99
  4. Step 4: Simplify right side
    7,379.28x = 37,978,806.48
  5. Step 5: Solve for x
    x = 37,978,806.48/7,379.28
  6. Step 6: Final answer
    x = 5,146.68

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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.