Home / 3,701.60-5,105.32-2,209.20

Finding the Fourth Proportional to 3,701.60, 5,105.32 and 2,209.20

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Solution

The fourth proportional to 3,701.60, 5,105.32 and 2,209.20 is: 3,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.60 : 5,105.32 = 2,209.20 : x
  2. Step 2: Convert to fraction form
    3,701.60/5,105.32 = 2,209.20/x
  3. Step 3: Cross multiply
    3,701.60x = 5,105.32 × 2,209.20
  4. Step 4: Simplify right side
    3,701.60x = 11,278,672.94
  5. Step 5: Solve for x
    x = 11,278,672.94/3,701.60
  6. Step 6: Final answer
    x = 3,046.97

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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.