Home / 3,638.28-5,456.20-1,446.42

Finding the Fourth Proportional to 3,638.28, 5,456.20 and 1,446.42

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Solution

The fourth proportional to 3,638.28, 5,456.20 and 1,446.42 is: 2,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.28 : 5,456.20 = 1,446.42 : x
  2. Step 2: Convert to fraction form
    3,638.28/5,456.20 = 1,446.42/x
  3. Step 3: Cross multiply
    3,638.28x = 5,456.20 × 1,446.42
  4. Step 4: Simplify right side
    3,638.28x = 7,891,956.80
  5. Step 5: Solve for x
    x = 7,891,956.80/3,638.28
  6. Step 6: Final answer
    x = 2,169.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.