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Finding the Fourth Proportional to 2,236, 3,354.48 and 938.56

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Solution

The fourth proportional to 2,236, 3,354.48 and 938.56 is: 1,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236 : 3,354.48 = 938.56 : x
  2. Step 2: Convert to fraction form
    2,236/3,354.48 = 938.56/x
  3. Step 3: Cross multiply
    2,236x = 3,354.48 × 938.56
  4. Step 4: Simplify right side
    2,236x = 3,148,380.75
  5. Step 5: Solve for x
    x = 3,148,380.75/2,236
  6. Step 6: Final answer
    x = 1,408.04

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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.