Home / 3,943.55-5,441.82-2,175.15

Finding the Fourth Proportional to 3,943.55, 5,441.82 and 2,175.15

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Solution

The fourth proportional to 3,943.55, 5,441.82 and 2,175.15 is: 3,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.55 : 5,441.82 = 2,175.15 : x
  2. Step 2: Convert to fraction form
    3,943.55/5,441.82 = 2,175.15/x
  3. Step 3: Cross multiply
    3,943.55x = 5,441.82 × 2,175.15
  4. Step 4: Simplify right side
    3,943.55x = 11,836,787.02
  5. Step 5: Solve for x
    x = 11,836,787.02/3,943.55
  6. Step 6: Final answer
    x = 3,001.55

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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.