Home / 3,175.19-4,382.46-1,997.85

Finding the Fourth Proportional to 3,175.19, 4,382.46 and 1,997.85

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Solution

The fourth proportional to 3,175.19, 4,382.46 and 1,997.85 is: 2,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.19 : 4,382.46 = 1,997.85 : x
  2. Step 2: Convert to fraction form
    3,175.19/4,382.46 = 1,997.85/x
  3. Step 3: Cross multiply
    3,175.19x = 4,382.46 × 1,997.85
  4. Step 4: Simplify right side
    3,175.19x = 8,755,497.71
  5. Step 5: Solve for x
    x = 8,755,497.71/3,175.19
  6. Step 6: Final answer
    x = 2,757.48

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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.