Home / 3,932.83-5,427.21-2,164.42

Finding the Fourth Proportional to 3,932.83, 5,427.21 and 2,164.42

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Solution

The fourth proportional to 3,932.83, 5,427.21 and 2,164.42 is: 2,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.83 : 5,427.21 = 2,164.42 : x
  2. Step 2: Convert to fraction form
    3,932.83/5,427.21 = 2,164.42/x
  3. Step 3: Cross multiply
    3,932.83x = 5,427.21 × 2,164.42
  4. Step 4: Simplify right side
    3,932.83x = 11,746,761.87
  5. Step 5: Solve for x
    x = 11,746,761.87/3,932.83
  6. Step 6: Final answer
    x = 2,986.85

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1.5x scale

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.