Home / 3,442.12-5,171.40-2,211.92

Finding the Fourth Proportional to 3,442.12, 5,171.40 and 2,211.92

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Solution

The fourth proportional to 3,442.12, 5,171.40 and 2,211.92 is: 3,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.12 : 5,171.40 = 2,211.92 : x
  2. Step 2: Convert to fraction form
    3,442.12/5,171.40 = 2,211.92/x
  3. Step 3: Cross multiply
    3,442.12x = 5,171.40 × 2,211.92
  4. Step 4: Simplify right side
    3,442.12x = 11,438,723.09
  5. Step 5: Solve for x
    x = 11,438,723.09/3,442.12
  6. Step 6: Final answer
    x = 3,323.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.