Home / 5,414.55-8,119.80-3,766.20

Finding the Fourth Proportional to 5,414.55, 8,119.80 and 3,766.20

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Solution

The fourth proportional to 5,414.55, 8,119.80 and 3,766.20 is: 5,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.55 : 8,119.80 = 3,766.20 : x
  2. Step 2: Convert to fraction form
    5,414.55/8,119.80 = 3,766.20/x
  3. Step 3: Cross multiply
    5,414.55x = 8,119.80 × 3,766.20
  4. Step 4: Simplify right side
    5,414.55x = 30,580,790.76
  5. Step 5: Solve for x
    x = 30,580,790.76/5,414.55
  6. Step 6: Final answer
    x = 5,647.89

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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.