Home / 7,422.28-11,133.88-2,491.52

Finding the Fourth Proportional to 7,422.28, 11,133.88 and 2,491.52

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Solution

The fourth proportional to 7,422.28, 11,133.88 and 2,491.52 is: 3,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.28 : 11,133.88 = 2,491.52 : x
  2. Step 2: Convert to fraction form
    7,422.28/11,133.88 = 2,491.52/x
  3. Step 3: Cross multiply
    7,422.28x = 11,133.88 × 2,491.52
  4. Step 4: Simplify right side
    7,422.28x = 27,740,284.70
  5. Step 5: Solve for x
    x = 27,740,284.70/7,422.28
  6. Step 6: Final answer
    x = 3,737.43

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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.