Home / 2,082.21-3,118.41-1,092.66

Finding the Fourth Proportional to 2,082.21, 3,118.41 and 1,092.66

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Solution

The fourth proportional to 2,082.21, 3,118.41 and 1,092.66 is: 1,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.21 : 3,118.41 = 1,092.66 : x
  2. Step 2: Convert to fraction form
    2,082.21/3,118.41 = 1,092.66/x
  3. Step 3: Cross multiply
    2,082.21x = 3,118.41 × 1,092.66
  4. Step 4: Simplify right side
    2,082.21x = 3,407,361.87
  5. Step 5: Solve for x
    x = 3,407,361.87/2,082.21
  6. Step 6: Final answer
    x = 1,636.42

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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.