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Finding the Fourth Proportional to 2,712.22, 3,742.20 and 1,593.20

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Solution

The fourth proportional to 2,712.22, 3,742.20 and 1,593.20 is: 2,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.22 : 3,742.20 = 1,593.20 : x
  2. Step 2: Convert to fraction form
    2,712.22/3,742.20 = 1,593.20/x
  3. Step 3: Cross multiply
    2,712.22x = 3,742.20 × 1,593.20
  4. Step 4: Simplify right side
    2,712.22x = 5,962,082.40
  5. Step 5: Solve for x
    x = 5,962,082.40/2,712.22
  6. Step 6: Final answer
    x = 2,198.23

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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.