Home / 1,593.22-2,390.24-861.79

Finding the Fourth Proportional to 1,593.22, 2,390.24 and 861.79

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Solution

The fourth proportional to 1,593.22, 2,390.24 and 861.79 is: 1,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.22 : 2,390.24 = 861.79 : x
  2. Step 2: Convert to fraction form
    1,593.22/2,390.24 = 861.79/x
  3. Step 3: Cross multiply
    1,593.22x = 2,390.24 × 861.79
  4. Step 4: Simplify right side
    1,593.22x = 2,059,884.93
  5. Step 5: Solve for x
    x = 2,059,884.93/1,593.22
  6. Step 6: Final answer
    x = 1,292.91

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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.