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Finding the Fourth Proportional to 3,203.13, 4,804.12 and 863.29

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Solution

The fourth proportional to 3,203.13, 4,804.12 and 863.29 is: 1,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.13 : 4,804.12 = 863.29 : x
  2. Step 2: Convert to fraction form
    3,203.13/4,804.12 = 863.29/x
  3. Step 3: Cross multiply
    3,203.13x = 4,804.12 × 863.29
  4. Step 4: Simplify right side
    3,203.13x = 4,147,348.75
  5. Step 5: Solve for x
    x = 4,147,348.75/3,203.13
  6. Step 6: Final answer
    x = 1,294.78

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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.