Home / 3,321.28-4,982.08-1,589.12

Finding the Fourth Proportional to 3,321.28, 4,982.08 and 1,589.12

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Solution

The fourth proportional to 3,321.28, 4,982.08 and 1,589.12 is: 2,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.28 : 4,982.08 = 1,589.12 : x
  2. Step 2: Convert to fraction form
    3,321.28/4,982.08 = 1,589.12/x
  3. Step 3: Cross multiply
    3,321.28x = 4,982.08 × 1,589.12
  4. Step 4: Simplify right side
    3,321.28x = 7,917,122.97
  5. Step 5: Solve for x
    x = 7,917,122.97/3,321.28
  6. Step 6: Final answer
    x = 2,383.76

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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.