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Finding the Fourth Proportional to 2,863.75, 3,952.00 and 1,604.81

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Solution

The fourth proportional to 2,863.75, 3,952.00 and 1,604.81 is: 2,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.75 : 3,952.00 = 1,604.81 : x
  2. Step 2: Convert to fraction form
    2,863.75/3,952.00 = 1,604.81/x
  3. Step 3: Cross multiply
    2,863.75x = 3,952.00 × 1,604.81
  4. Step 4: Simplify right side
    2,863.75x = 6,342,194.26
  5. Step 5: Solve for x
    x = 6,342,194.26/2,863.75
  6. Step 6: Final answer
    x = 2,214.65

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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.