Home / 3,948.90-5,923.07-1,351.78

Finding the Fourth Proportional to 3,948.90, 5,923.07 and 1,351.78

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Solution

The fourth proportional to 3,948.90, 5,923.07 and 1,351.78 is: 2,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.90 : 5,923.07 = 1,351.78 : x
  2. Step 2: Convert to fraction form
    3,948.90/5,923.07 = 1,351.78/x
  3. Step 3: Cross multiply
    3,948.90x = 5,923.07 × 1,351.78
  4. Step 4: Simplify right side
    3,948.90x = 8,006,687.56
  5. Step 5: Solve for x
    x = 8,006,687.56/3,948.90
  6. Step 6: Final answer
    x = 2,027.57

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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.