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Finding the Fourth Proportional to 3,593.44, 5,391 and 1,128.12

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Solution

The fourth proportional to 3,593.44, 5,391 and 1,128.12 is: 1,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.44 : 5,391 = 1,128.12 : x
  2. Step 2: Convert to fraction form
    3,593.44/5,391 = 1,128.12/x
  3. Step 3: Cross multiply
    3,593.44x = 5,391 × 1,128.12
  4. Step 4: Simplify right side
    3,593.44x = 6,081,694.92
  5. Step 5: Solve for x
    x = 6,081,694.92/3,593.44
  6. Step 6: Final answer
    x = 1,692.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.