Home / 7,472.28-11,209.86-2,278.92

Finding the Fourth Proportional to 7,472.28, 11,209.86 and 2,278.92

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Solution

The fourth proportional to 7,472.28, 11,209.86 and 2,278.92 is: 3,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.28 : 11,209.86 = 2,278.92 : x
  2. Step 2: Convert to fraction form
    7,472.28/11,209.86 = 2,278.92/x
  3. Step 3: Cross multiply
    7,472.28x = 11,209.86 × 2,278.92
  4. Step 4: Simplify right side
    7,472.28x = 25,546,374.15
  5. Step 5: Solve for x
    x = 25,546,374.15/7,472.28
  6. Step 6: Final answer
    x = 3,418.82

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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.