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Finding the Fourth Proportional to 3,217.04, 4,825.02 and 908

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Solution

The fourth proportional to 3,217.04, 4,825.02 and 908 is: 1,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.04 : 4,825.02 = 908 : x
  2. Step 2: Convert to fraction form
    3,217.04/4,825.02 = 908/x
  3. Step 3: Cross multiply
    3,217.04x = 4,825.02 × 908
  4. Step 4: Simplify right side
    3,217.04x = 4,381,118.16
  5. Step 5: Solve for x
    x = 4,381,118.16/3,217.04
  6. Step 6: Final answer
    x = 1,361.85

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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.