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Finding the Fourth Proportional to 3,842.28, 5,765.22 and 1,893.42

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Solution

The fourth proportional to 3,842.28, 5,765.22 and 1,893.42 is: 2,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.28 : 5,765.22 = 1,893.42 : x
  2. Step 2: Convert to fraction form
    3,842.28/5,765.22 = 1,893.42/x
  3. Step 3: Cross multiply
    3,842.28x = 5,765.22 × 1,893.42
  4. Step 4: Simplify right side
    3,842.28x = 10,915,982.85
  5. Step 5: Solve for x
    x = 10,915,982.85/3,842.28
  6. Step 6: Final answer
    x = 2,841.02

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1.5x scale

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.