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Finding the Fourth Proportional to 2,208.39, 3,310.07 and 908.25

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Solution

The fourth proportional to 2,208.39, 3,310.07 and 908.25 is: 1,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.39 : 3,310.07 = 908.25 : x
  2. Step 2: Convert to fraction form
    2,208.39/3,310.07 = 908.25/x
  3. Step 3: Cross multiply
    2,208.39x = 3,310.07 × 908.25
  4. Step 4: Simplify right side
    2,208.39x = 3,006,366.54
  5. Step 5: Solve for x
    x = 3,006,366.54/2,208.39
  6. Step 6: Final answer
    x = 1,361.34

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1.5x scale

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.