Home / 1,322.30-1,825.17-791.57

Finding the Fourth Proportional to 1,322.30, 1,825.17 and 791.57

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Solution

The fourth proportional to 1,322.30, 1,825.17 and 791.57 is: 1,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322.30 : 1,825.17 = 791.57 : x
  2. Step 2: Convert to fraction form
    1,322.30/1,825.17 = 791.57/x
  3. Step 3: Cross multiply
    1,322.30x = 1,825.17 × 791.57
  4. Step 4: Simplify right side
    1,322.30x = 1,444,740.69
  5. Step 5: Solve for x
    x = 1,444,740.69/1,322.30
  6. Step 6: Final answer
    x = 1,092.60

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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.