Home / 5,115.38-7,057.52-4,169.54

Finding the Fourth Proportional to 5,115.38, 7,057.52 and 4,169.54

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Solution

The fourth proportional to 5,115.38, 7,057.52 and 4,169.54 is: 5,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.38 : 7,057.52 = 4,169.54 : x
  2. Step 2: Convert to fraction form
    5,115.38/7,057.52 = 4,169.54/x
  3. Step 3: Cross multiply
    5,115.38x = 7,057.52 × 4,169.54
  4. Step 4: Simplify right side
    5,115.38x = 29,426,591.09
  5. Step 5: Solve for x
    x = 29,426,591.09/5,115.38
  6. Step 6: Final answer
    x = 5,752.57

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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.