Home / 3,220.28-4,456.08-2,747.42

Finding the Fourth Proportional to 3,220.28, 4,456.08 and 2,747.42

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Solution

The fourth proportional to 3,220.28, 4,456.08 and 2,747.42 is: 3,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.28 : 4,456.08 = 2,747.42 : x
  2. Step 2: Convert to fraction form
    3,220.28/4,456.08 = 2,747.42/x
  3. Step 3: Cross multiply
    3,220.28x = 4,456.08 × 2,747.42
  4. Step 4: Simplify right side
    3,220.28x = 12,242,701.03
  5. Step 5: Solve for x
    x = 12,242,701.03/3,220.28
  6. Step 6: Final answer
    x = 3,801.76

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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.