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Finding the Fourth Proportional to 1,082.26, 1,623.48 and 351.82

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Solution

The fourth proportional to 1,082.26, 1,623.48 and 351.82 is: 527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.26 : 1,623.48 = 351.82 : x
  2. Step 2: Convert to fraction form
    1,082.26/1,623.48 = 351.82/x
  3. Step 3: Cross multiply
    1,082.26x = 1,623.48 × 351.82
  4. Step 4: Simplify right side
    1,082.26x = 571,172.73
  5. Step 5: Solve for x
    x = 571,172.73/1,082.26
  6. Step 6: Final answer
    x = 527.76

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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.