Home / 3,246.72-4,481.28-1,921.92

Finding the Fourth Proportional to 3,246.72, 4,481.28 and 1,921.92

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Solution

The fourth proportional to 3,246.72, 4,481.28 and 1,921.92 is: 2,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.72 : 4,481.28 = 1,921.92 : x
  2. Step 2: Convert to fraction form
    3,246.72/4,481.28 = 1,921.92/x
  3. Step 3: Cross multiply
    3,246.72x = 4,481.28 × 1,921.92
  4. Step 4: Simplify right side
    3,246.72x = 8,612,661.66
  5. Step 5: Solve for x
    x = 8,612,661.66/3,246.72
  6. Step 6: Final answer
    x = 2,652.73

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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.