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Finding the Fourth Proportional to 2,732, 4,098.20 and 908

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Solution

The fourth proportional to 2,732, 4,098.20 and 908 is: 1,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,732 : 4,098.20 = 908 : x
  2. Step 2: Convert to fraction form
    2,732/4,098.20 = 908/x
  3. Step 3: Cross multiply
    2,732x = 4,098.20 × 908
  4. Step 4: Simplify right side
    2,732x = 3,721,165.60
  5. Step 5: Solve for x
    x = 3,721,165.60/2,732
  6. Step 6: Final answer
    x = 1,362.07

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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.