Home / 5,170.92-7,131.67-3,177.91

Finding the Fourth Proportional to 5,170.92, 7,131.67 and 3,177.91

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Solution

The fourth proportional to 5,170.92, 7,131.67 and 3,177.91 is: 4,382.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.92 : 7,131.67 = 3,177.91 : x
  2. Step 2: Convert to fraction form
    5,170.92/7,131.67 = 3,177.91/x
  3. Step 3: Cross multiply
    5,170.92x = 7,131.67 × 3,177.91
  4. Step 4: Simplify right side
    5,170.92x = 22,663,805.41
  5. Step 5: Solve for x
    x = 22,663,805.41/5,170.92
  6. Step 6: Final answer
    x = 4,382.93

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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.