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Finding the Fourth Proportional to 2,722.97, 4,082.46 and 873.03

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Solution

The fourth proportional to 2,722.97, 4,082.46 and 873.03 is: 1,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.97 : 4,082.46 = 873.03 : x
  2. Step 2: Convert to fraction form
    2,722.97/4,082.46 = 873.03/x
  3. Step 3: Cross multiply
    2,722.97x = 4,082.46 × 873.03
  4. Step 4: Simplify right side
    2,722.97x = 3,564,110.05
  5. Step 5: Solve for x
    x = 3,564,110.05/2,722.97
  6. Step 6: Final answer
    x = 1,308.91

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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.