Home / 3,761.39-5,190.68-2,082.87

Finding the Fourth Proportional to 3,761.39, 5,190.68 and 2,082.87

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Solution

The fourth proportional to 3,761.39, 5,190.68 and 2,082.87 is: 2,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.39 : 5,190.68 = 2,082.87 : x
  2. Step 2: Convert to fraction form
    3,761.39/5,190.68 = 2,082.87/x
  3. Step 3: Cross multiply
    3,761.39x = 5,190.68 × 2,082.87
  4. Step 4: Simplify right side
    3,761.39x = 10,811,516.86
  5. Step 5: Solve for x
    x = 10,811,516.86/3,761.39
  6. Step 6: Final answer
    x = 2,874.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.