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Finding the Fourth Proportional to 3,202.49, 4,803.13 and 862.61

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Solution

The fourth proportional to 3,202.49, 4,803.13 and 862.61 is: 1,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.49 : 4,803.13 = 862.61 : x
  2. Step 2: Convert to fraction form
    3,202.49/4,803.13 = 862.61/x
  3. Step 3: Cross multiply
    3,202.49x = 4,803.13 × 862.61
  4. Step 4: Simplify right side
    3,202.49x = 4,143,205.03
  5. Step 5: Solve for x
    x = 4,143,205.03/3,202.49
  6. Step 6: Final answer
    x = 1,293.74

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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.