Home / 3,198.64-4,789.92-2,025.12

Finding the Fourth Proportional to 3,198.64, 4,789.92 and 2,025.12

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Solution

The fourth proportional to 3,198.64, 4,789.92 and 2,025.12 is: 3,032.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.64 : 4,789.92 = 2,025.12 : x
  2. Step 2: Convert to fraction form
    3,198.64/4,789.92 = 2,025.12/x
  3. Step 3: Cross multiply
    3,198.64x = 4,789.92 × 2,025.12
  4. Step 4: Simplify right side
    3,198.64x = 9,700,162.79
  5. Step 5: Solve for x
    x = 9,700,162.79/3,198.64
  6. Step 6: Final answer
    x = 3,032.59

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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.