Home / 5,251.38-7,240.91-3,922.85

Finding the Fourth Proportional to 5,251.38, 7,240.91 and 3,922.85

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Solution

The fourth proportional to 5,251.38, 7,240.91 and 3,922.85 is: 5,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.38 : 7,240.91 = 3,922.85 : x
  2. Step 2: Convert to fraction form
    5,251.38/7,240.91 = 3,922.85/x
  3. Step 3: Cross multiply
    5,251.38x = 7,240.91 × 3,922.85
  4. Step 4: Simplify right side
    5,251.38x = 28,404,947.97
  5. Step 5: Solve for x
    x = 28,404,947.97/5,251.38
  6. Step 6: Final answer
    x = 5,409.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.