Home / 3,932.96-5,420.70-3,372.72

Finding the Fourth Proportional to 3,932.96, 5,420.70 and 3,372.72

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Solution

The fourth proportional to 3,932.96, 5,420.70 and 3,372.72 is: 4,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.96 : 5,420.70 = 3,372.72 : x
  2. Step 2: Convert to fraction form
    3,932.96/5,420.70 = 3,372.72/x
  3. Step 3: Cross multiply
    3,932.96x = 5,420.70 × 3,372.72
  4. Step 4: Simplify right side
    3,932.96x = 18,282,503.30
  5. Step 5: Solve for x
    x = 18,282,503.30/3,932.96
  6. Step 6: Final answer
    x = 4,648.54

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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.