Home / 4,758.75-7,129.62-3,351.78

Finding the Fourth Proportional to 4,758.75, 7,129.62 and 3,351.78

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Solution

The fourth proportional to 4,758.75, 7,129.62 and 3,351.78 is: 5,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.75 : 7,129.62 = 3,351.78 : x
  2. Step 2: Convert to fraction form
    4,758.75/7,129.62 = 3,351.78/x
  3. Step 3: Cross multiply
    4,758.75x = 7,129.62 × 3,351.78
  4. Step 4: Simplify right side
    4,758.75x = 23,896,917.72
  5. Step 5: Solve for x
    x = 23,896,917.72/4,758.75
  6. Step 6: Final answer
    x = 5,021.68

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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.