Home / 4,082.18-5,631.78-2,665.41

Finding the Fourth Proportional to 4,082.18, 5,631.78 and 2,665.41

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Solution

The fourth proportional to 4,082.18, 5,631.78 and 2,665.41 is: 3,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,082.18 : 5,631.78 = 2,665.41 : x
  2. Step 2: Convert to fraction form
    4,082.18/5,631.78 = 2,665.41/x
  3. Step 3: Cross multiply
    4,082.18x = 5,631.78 × 2,665.41
  4. Step 4: Simplify right side
    4,082.18x = 15,011,002.73
  5. Step 5: Solve for x
    x = 15,011,002.73/4,082.18
  6. Step 6: Final answer
    x = 3,677.21

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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.