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Finding the Fourth Proportional to 4,768.31, 7,138.03 and 4,329.56

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Solution

The fourth proportional to 4,768.31, 7,138.03 and 4,329.56 is: 6,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,768.31 : 7,138.03 = 4,329.56 : x
  2. Step 2: Convert to fraction form
    4,768.31/7,138.03 = 4,329.56/x
  3. Step 3: Cross multiply
    4,768.31x = 7,138.03 × 4,329.56
  4. Step 4: Simplify right side
    4,768.31x = 30,904,529.17
  5. Step 5: Solve for x
    x = 30,904,529.17/4,768.31
  6. Step 6: Final answer
    x = 6,481.23

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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.