Home / 3,201.28-4,414.80-2,207.68

Finding the Fourth Proportional to 3,201.28, 4,414.80 and 2,207.68

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Solution

The fourth proportional to 3,201.28, 4,414.80 and 2,207.68 is: 3,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.28 : 4,414.80 = 2,207.68 : x
  2. Step 2: Convert to fraction form
    3,201.28/4,414.80 = 2,207.68/x
  3. Step 3: Cross multiply
    3,201.28x = 4,414.80 × 2,207.68
  4. Step 4: Simplify right side
    3,201.28x = 9,746,465.66
  5. Step 5: Solve for x
    x = 9,746,465.66/3,201.28
  6. Step 6: Final answer
    x = 3,044.55

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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.