Home / 3,229.64-4,456.08-1,970.61

Finding the Fourth Proportional to 3,229.64, 4,456.08 and 1,970.61

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Solution

The fourth proportional to 3,229.64, 4,456.08 and 1,970.61 is: 2,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.64 : 4,456.08 = 1,970.61 : x
  2. Step 2: Convert to fraction form
    3,229.64/4,456.08 = 1,970.61/x
  3. Step 3: Cross multiply
    3,229.64x = 4,456.08 × 1,970.61
  4. Step 4: Simplify right side
    3,229.64x = 8,781,204.16
  5. Step 5: Solve for x
    x = 8,781,204.16/3,229.64
  6. Step 6: Final answer
    x = 2,718.94

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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.