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Finding the Fourth Proportional to 1,163.27, 1,604.99 and 743.34

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Solution

The fourth proportional to 1,163.27, 1,604.99 and 743.34 is: 1,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.27 : 1,604.99 = 743.34 : x
  2. Step 2: Convert to fraction form
    1,163.27/1,604.99 = 743.34/x
  3. Step 3: Cross multiply
    1,163.27x = 1,604.99 × 743.34
  4. Step 4: Simplify right side
    1,163.27x = 1,193,061.14
  5. Step 5: Solve for x
    x = 1,193,061.14/1,163.27
  6. Step 6: Final answer
    x = 1,025.61

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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.