Home / 4,151.92-6,228.18-1,378.48

Finding the Fourth Proportional to 4,151.92, 6,228.18 and 1,378.48

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Solution

The fourth proportional to 4,151.92, 6,228.18 and 1,378.48 is: 2,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.92 : 6,228.18 = 1,378.48 : x
  2. Step 2: Convert to fraction form
    4,151.92/6,228.18 = 1,378.48/x
  3. Step 3: Cross multiply
    4,151.92x = 6,228.18 × 1,378.48
  4. Step 4: Simplify right side
    4,151.92x = 8,585,421.57
  5. Step 5: Solve for x
    x = 8,585,421.57/4,151.92
  6. Step 6: Final answer
    x = 2,067.82

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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.