Home / 3,964.14-5,468.31-3,121.74

Finding the Fourth Proportional to 3,964.14, 5,468.31 and 3,121.74

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Solution

The fourth proportional to 3,964.14, 5,468.31 and 3,121.74 is: 4,306.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.14 : 5,468.31 = 3,121.74 : x
  2. Step 2: Convert to fraction form
    3,964.14/5,468.31 = 3,121.74/x
  3. Step 3: Cross multiply
    3,964.14x = 5,468.31 × 3,121.74
  4. Step 4: Simplify right side
    3,964.14x = 17,070,642.06
  5. Step 5: Solve for x
    x = 17,070,642.06/3,964.14
  6. Step 6: Final answer
    x = 4,306.27

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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.