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Finding the Fourth Proportional to 2,734.52, 4,102.50 and 786.88

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Solution

The fourth proportional to 2,734.52, 4,102.50 and 786.88 is: 1,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.52 : 4,102.50 = 786.88 : x
  2. Step 2: Convert to fraction form
    2,734.52/4,102.50 = 786.88/x
  3. Step 3: Cross multiply
    2,734.52x = 4,102.50 × 786.88
  4. Step 4: Simplify right side
    2,734.52x = 3,228,175.20
  5. Step 5: Solve for x
    x = 3,228,175.20/2,734.52
  6. Step 6: Final answer
    x = 1,180.53

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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.