Home / 3,932.92-5,427.78-2,254.92

Finding the Fourth Proportional to 3,932.92, 5,427.78 and 2,254.92

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Solution

The fourth proportional to 3,932.92, 5,427.78 and 2,254.92 is: 3,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.92 : 5,427.78 = 2,254.92 : x
  2. Step 2: Convert to fraction form
    3,932.92/5,427.78 = 2,254.92/x
  3. Step 3: Cross multiply
    3,932.92x = 5,427.78 × 2,254.92
  4. Step 4: Simplify right side
    3,932.92x = 12,239,209.68
  5. Step 5: Solve for x
    x = 12,239,209.68/3,932.92
  6. Step 6: Final answer
    x = 3,111.99

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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.