Home / 3,932.92-5,427.35-2,164.51

Finding the Fourth Proportional to 3,932.92, 5,427.35 and 2,164.51

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Solution

The fourth proportional to 3,932.92, 5,427.35 and 2,164.51 is: 2,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.92 : 5,427.35 = 2,164.51 : x
  2. Step 2: Convert to fraction form
    3,932.92/5,427.35 = 2,164.51/x
  3. Step 3: Cross multiply
    3,932.92x = 5,427.35 × 2,164.51
  4. Step 4: Simplify right side
    3,932.92x = 11,747,531.62
  5. Step 5: Solve for x
    x = 11,747,531.62/3,932.92
  6. Step 6: Final answer
    x = 2,986.98

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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.