Home / 5,020.20-7,535.10-2,557.80

Finding the Fourth Proportional to 5,020.20, 7,535.10 and 2,557.80

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Solution

The fourth proportional to 5,020.20, 7,535.10 and 2,557.80 is: 3,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.20 : 7,535.10 = 2,557.80 : x
  2. Step 2: Convert to fraction form
    5,020.20/7,535.10 = 2,557.80/x
  3. Step 3: Cross multiply
    5,020.20x = 7,535.10 × 2,557.80
  4. Step 4: Simplify right side
    5,020.20x = 19,273,278.78
  5. Step 5: Solve for x
    x = 19,273,278.78/5,020.20
  6. Step 6: Final answer
    x = 3,839.15

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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.