Home / 3,638.28-5,020.72-2,044.90

Finding the Fourth Proportional to 3,638.28, 5,020.72 and 2,044.90

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Solution

The fourth proportional to 3,638.28, 5,020.72 and 2,044.90 is: 2,821.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.28 : 5,020.72 = 2,044.90 : x
  2. Step 2: Convert to fraction form
    3,638.28/5,020.72 = 2,044.90/x
  3. Step 3: Cross multiply
    3,638.28x = 5,020.72 × 2,044.90
  4. Step 4: Simplify right side
    3,638.28x = 10,266,843.25
  5. Step 5: Solve for x
    x = 10,266,843.25/3,638.28
  6. Step 6: Final answer
    x = 2,821.89

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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.