Home / 4,540.91-6,811.39-1,378.38

Finding the Fourth Proportional to 4,540.91, 6,811.39 and 1,378.38

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Solution

The fourth proportional to 4,540.91, 6,811.39 and 1,378.38 is: 2,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.91 : 6,811.39 = 1,378.38 : x
  2. Step 2: Convert to fraction form
    4,540.91/6,811.39 = 1,378.38/x
  3. Step 3: Cross multiply
    4,540.91x = 6,811.39 × 1,378.38
  4. Step 4: Simplify right side
    4,540.91x = 9,388,683.25
  5. Step 5: Solve for x
    x = 9,388,683.25/4,540.91
  6. Step 6: Final answer
    x = 2,067.58

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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.