Home / 6,631.38-9,149.49-4,112.28

Finding the Fourth Proportional to 6,631.38, 9,149.49 and 4,112.28

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Solution

The fourth proportional to 6,631.38, 9,149.49 and 4,112.28 is: 5,673.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.38 : 9,149.49 = 4,112.28 : x
  2. Step 2: Convert to fraction form
    6,631.38/9,149.49 = 4,112.28/x
  3. Step 3: Cross multiply
    6,631.38x = 9,149.49 × 4,112.28
  4. Step 4: Simplify right side
    6,631.38x = 37,625,264.74
  5. Step 5: Solve for x
    x = 37,625,264.74/6,631.38
  6. Step 6: Final answer
    x = 5,673.82

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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.