Home / 3,839.97-5,298.66-2,161.17

Finding the Fourth Proportional to 3,839.97, 5,298.66 and 2,161.17

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Solution

The fourth proportional to 3,839.97, 5,298.66 and 2,161.17 is: 2,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.97 : 5,298.66 = 2,161.17 : x
  2. Step 2: Convert to fraction form
    3,839.97/5,298.66 = 2,161.17/x
  3. Step 3: Cross multiply
    3,839.97x = 5,298.66 × 2,161.17
  4. Step 4: Simplify right side
    3,839.97x = 11,451,305.03
  5. Step 5: Solve for x
    x = 11,451,305.03/3,839.97
  6. Step 6: Final answer
    x = 2,982.13

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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.