Home / 3,932.72-5,427.05-2,231.54

Finding the Fourth Proportional to 3,932.72, 5,427.05 and 2,231.54

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Solution

The fourth proportional to 3,932.72, 5,427.05 and 2,231.54 is: 3,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.72 : 5,427.05 = 2,231.54 : x
  2. Step 2: Convert to fraction form
    3,932.72/5,427.05 = 2,231.54/x
  3. Step 3: Cross multiply
    3,932.72x = 5,427.05 × 2,231.54
  4. Step 4: Simplify right side
    3,932.72x = 12,110,650.44
  5. Step 5: Solve for x
    x = 12,110,650.44/3,932.72
  6. Step 6: Final answer
    x = 3,079.46

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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.