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Finding the Fourth Proportional to 3,329.13, 4,993.66 and 863.95

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Solution

The fourth proportional to 3,329.13, 4,993.66 and 863.95 is: 1,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.13 : 4,993.66 = 863.95 : x
  2. Step 2: Convert to fraction form
    3,329.13/4,993.66 = 863.95/x
  3. Step 3: Cross multiply
    3,329.13x = 4,993.66 × 863.95
  4. Step 4: Simplify right side
    3,329.13x = 4,314,272.56
  5. Step 5: Solve for x
    x = 4,314,272.56/3,329.13
  6. Step 6: Final answer
    x = 1,295.92

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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.