Home / 3,991.14-5,512.78-3,363.75

Finding the Fourth Proportional to 3,991.14, 5,512.78 and 3,363.75

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Solution

The fourth proportional to 3,991.14, 5,512.78 and 3,363.75 is: 4,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.14 : 5,512.78 = 3,363.75 : x
  2. Step 2: Convert to fraction form
    3,991.14/5,512.78 = 3,363.75/x
  3. Step 3: Cross multiply
    3,991.14x = 5,512.78 × 3,363.75
  4. Step 4: Simplify right side
    3,991.14x = 18,543,617.93
  5. Step 5: Solve for x
    x = 18,543,617.93/3,991.14
  6. Step 6: Final answer
    x = 4,646.20

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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.