Home / 3,209.27-4,424.49-2,881.22

Finding the Fourth Proportional to 3,209.27, 4,424.49 and 2,881.22

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Solution

The fourth proportional to 3,209.27, 4,424.49 and 2,881.22 is: 3,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.27 : 4,424.49 = 2,881.22 : x
  2. Step 2: Convert to fraction form
    3,209.27/4,424.49 = 2,881.22/x
  3. Step 3: Cross multiply
    3,209.27x = 4,424.49 × 2,881.22
  4. Step 4: Simplify right side
    3,209.27x = 12,747,906.96
  5. Step 5: Solve for x
    x = 12,747,906.96/3,209.27
  6. Step 6: Final answer
    x = 3,972.22

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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.