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Finding the Fourth Proportional to 2,276, 3,414 and 908

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Solution

The fourth proportional to 2,276, 3,414 and 908 is: 1,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276 : 3,414 = 908 : x
  2. Step 2: Convert to fraction form
    2,276/3,414 = 908/x
  3. Step 3: Cross multiply
    2,276x = 3,414 × 908
  4. Step 4: Simplify right side
    2,276x = 3,099,912
  5. Step 5: Solve for x
    x = 3,099,912/2,276
  6. Step 6: Final answer
    x = 1,362

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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.