Home / 3,932.85-5,427.39-2,164.44

Finding the Fourth Proportional to 3,932.85, 5,427.39 and 2,164.44

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Solution

The fourth proportional to 3,932.85, 5,427.39 and 2,164.44 is: 2,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.85 : 5,427.39 = 2,164.44 : x
  2. Step 2: Convert to fraction form
    3,932.85/5,427.39 = 2,164.44/x
  3. Step 3: Cross multiply
    3,932.85x = 5,427.39 × 2,164.44
  4. Step 4: Simplify right side
    3,932.85x = 11,747,260.01
  5. Step 5: Solve for x
    x = 11,747,260.01/3,932.85
  6. Step 6: Final answer
    x = 2,986.96

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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.