Home / 3,928.12-5,889.09-2,691.76

Finding the Fourth Proportional to 3,928.12, 5,889.09 and 2,691.76

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Solution

The fourth proportional to 3,928.12, 5,889.09 and 2,691.76 is: 4,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.12 : 5,889.09 = 2,691.76 : x
  2. Step 2: Convert to fraction form
    3,928.12/5,889.09 = 2,691.76/x
  3. Step 3: Cross multiply
    3,928.12x = 5,889.09 × 2,691.76
  4. Step 4: Simplify right side
    3,928.12x = 15,852,016.90
  5. Step 5: Solve for x
    x = 15,852,016.90/3,928.12
  6. Step 6: Final answer
    x = 4,035.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.