Home / 3,769.41-5,650.92-1,428.12

Finding the Fourth Proportional to 3,769.41, 5,650.92 and 1,428.12

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Solution

The fourth proportional to 3,769.41, 5,650.92 and 1,428.12 is: 2,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.41 : 5,650.92 = 1,428.12 : x
  2. Step 2: Convert to fraction form
    3,769.41/5,650.92 = 1,428.12/x
  3. Step 3: Cross multiply
    3,769.41x = 5,650.92 × 1,428.12
  4. Step 4: Simplify right side
    3,769.41x = 8,070,191.87
  5. Step 5: Solve for x
    x = 8,070,191.87/3,769.41
  6. Step 6: Final answer
    x = 2,140.97

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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.