Home / 3,781.14-5,217.86-2,102.46

Finding the Fourth Proportional to 3,781.14, 5,217.86 and 2,102.46

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Solution

The fourth proportional to 3,781.14, 5,217.86 and 2,102.46 is: 2,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.14 : 5,217.86 = 2,102.46 : x
  2. Step 2: Convert to fraction form
    3,781.14/5,217.86 = 2,102.46/x
  3. Step 3: Cross multiply
    3,781.14x = 5,217.86 × 2,102.46
  4. Step 4: Simplify right side
    3,781.14x = 10,970,341.94
  5. Step 5: Solve for x
    x = 10,970,341.94/3,781.14
  6. Step 6: Final answer
    x = 2,901.33

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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.