Home / 2,680.55-4,020.20-732.29

Finding the Fourth Proportional to 2,680.55, 4,020.20 and 732.29

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Solution

The fourth proportional to 2,680.55, 4,020.20 and 732.29 is: 1,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.55 : 4,020.20 = 732.29 : x
  2. Step 2: Convert to fraction form
    2,680.55/4,020.20 = 732.29/x
  3. Step 3: Cross multiply
    2,680.55x = 4,020.20 × 732.29
  4. Step 4: Simplify right side
    2,680.55x = 2,943,948.60
  5. Step 5: Solve for x
    x = 2,943,948.60/2,680.55
  6. Step 6: Final answer
    x = 1,098.26

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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.