Home / 5,076.42-7,614.32-1,378.57

Finding the Fourth Proportional to 5,076.42, 7,614.32 and 1,378.57

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Solution

The fourth proportional to 5,076.42, 7,614.32 and 1,378.57 is: 2,067.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.42 : 7,614.32 = 1,378.57 : x
  2. Step 2: Convert to fraction form
    5,076.42/7,614.32 = 1,378.57/x
  3. Step 3: Cross multiply
    5,076.42x = 7,614.32 × 1,378.57
  4. Step 4: Simplify right side
    5,076.42x = 10,496,835.05
  5. Step 5: Solve for x
    x = 10,496,835.05/5,076.42
  6. Step 6: Final answer
    x = 2,067.76

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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.