Home / 3,532.25-4,871.13-2,115.71

Finding the Fourth Proportional to 3,532.25, 4,871.13 and 2,115.71

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Solution

The fourth proportional to 3,532.25, 4,871.13 and 2,115.71 is: 2,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,532.25 : 4,871.13 = 2,115.71 : x
  2. Step 2: Convert to fraction form
    3,532.25/4,871.13 = 2,115.71/x
  3. Step 3: Cross multiply
    3,532.25x = 4,871.13 × 2,115.71
  4. Step 4: Simplify right side
    3,532.25x = 10,305,874.10
  5. Step 5: Solve for x
    x = 10,305,874.10/3,532.25
  6. Step 6: Final answer
    x = 2,917.66

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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.