Home / 2,022.90-3,034.38-636.20

Finding the Fourth Proportional to 2,022.90, 3,034.38 and 636.20

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Solution

The fourth proportional to 2,022.90, 3,034.38 and 636.20 is: 954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.90 : 3,034.38 = 636.20 : x
  2. Step 2: Convert to fraction form
    2,022.90/3,034.38 = 636.20/x
  3. Step 3: Cross multiply
    2,022.90x = 3,034.38 × 636.20
  4. Step 4: Simplify right side
    2,022.90x = 1,930,472.56
  5. Step 5: Solve for x
    x = 1,930,472.56/2,022.90
  6. Step 6: Final answer
    x = 954.31

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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.