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Finding the Fourth Proportional to 7,422.66, 11,132.13 and 2,157.66

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Solution

The fourth proportional to 7,422.66, 11,132.13 and 2,157.66 is: 3,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.66 : 11,132.13 = 2,157.66 : x
  2. Step 2: Convert to fraction form
    7,422.66/11,132.13 = 2,157.66/x
  3. Step 3: Cross multiply
    7,422.66x = 11,132.13 × 2,157.66
  4. Step 4: Simplify right side
    7,422.66x = 24,019,351.62
  5. Step 5: Solve for x
    x = 24,019,351.62/7,422.66
  6. Step 6: Final answer
    x = 3,235.95

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1.5x scale

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.