Home / 3,761.21-5,190.47-2,082.68

Finding the Fourth Proportional to 3,761.21, 5,190.47 and 2,082.68

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Solution

The fourth proportional to 3,761.21, 5,190.47 and 2,082.68 is: 2,874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.21 : 5,190.47 = 2,082.68 : x
  2. Step 2: Convert to fraction form
    3,761.21/5,190.47 = 2,082.68/x
  3. Step 3: Cross multiply
    3,761.21x = 5,190.47 × 2,082.68
  4. Step 4: Simplify right side
    3,761.21x = 10,810,119.88
  5. Step 5: Solve for x
    x = 10,810,119.88/3,761.21
  6. Step 6: Final answer
    x = 2,874.11

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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.