Home / 3,861.41-5,791.97-2,688.03

Finding the Fourth Proportional to 3,861.41, 5,791.97 and 2,688.03

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Solution

The fourth proportional to 3,861.41, 5,791.97 and 2,688.03 is: 4,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.41 : 5,791.97 = 2,688.03 : x
  2. Step 2: Convert to fraction form
    3,861.41/5,791.97 = 2,688.03/x
  3. Step 3: Cross multiply
    3,861.41x = 5,791.97 × 2,688.03
  4. Step 4: Simplify right side
    3,861.41x = 15,568,975.68
  5. Step 5: Solve for x
    x = 15,568,975.68/3,861.41
  6. Step 6: Final answer
    x = 4,031.94

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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.