Home / 3,975.42-5,963.94-1,378.38

Finding the Fourth Proportional to 3,975.42, 5,963.94 and 1,378.38

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Solution

The fourth proportional to 3,975.42, 5,963.94 and 1,378.38 is: 2,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.42 : 5,963.94 = 1,378.38 : x
  2. Step 2: Convert to fraction form
    3,975.42/5,963.94 = 1,378.38/x
  3. Step 3: Cross multiply
    3,975.42x = 5,963.94 × 1,378.38
  4. Step 4: Simplify right side
    3,975.42x = 8,220,575.62
  5. Step 5: Solve for x
    x = 8,220,575.62/3,975.42
  6. Step 6: Final answer
    x = 2,067.85

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1.5x scale

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.