Home / 3,943.76-5,442.41-2,175.42

Finding the Fourth Proportional to 3,943.76, 5,442.41 and 2,175.42

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Solution

The fourth proportional to 3,943.76, 5,442.41 and 2,175.42 is: 3,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.76 : 5,442.41 = 2,175.42 : x
  2. Step 2: Convert to fraction form
    3,943.76/5,442.41 = 2,175.42/x
  3. Step 3: Cross multiply
    3,943.76x = 5,442.41 × 2,175.42
  4. Step 4: Simplify right side
    3,943.76x = 11,839,516.69
  5. Step 5: Solve for x
    x = 11,839,516.69/3,943.76
  6. Step 6: Final answer
    x = 3,002.09

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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.