Home / 7,422.18-11,132.88-2,491.92

Finding the Fourth Proportional to 7,422.18, 11,132.88 and 2,491.92

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Solution

The fourth proportional to 7,422.18, 11,132.88 and 2,491.92 is: 3,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.18 : 11,132.88 = 2,491.92 : x
  2. Step 2: Convert to fraction form
    7,422.18/11,132.88 = 2,491.92/x
  3. Step 3: Cross multiply
    7,422.18x = 11,132.88 × 2,491.92
  4. Step 4: Simplify right side
    7,422.18x = 27,742,246.33
  5. Step 5: Solve for x
    x = 27,742,246.33/7,422.18
  6. Step 6: Final answer
    x = 3,737.75

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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.