Home / 5,540.43-8,315.50-3,078.03

Finding the Fourth Proportional to 5,540.43, 8,315.50 and 3,078.03

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Solution

The fourth proportional to 5,540.43, 8,315.50 and 3,078.03 is: 4,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.43 : 8,315.50 = 3,078.03 : x
  2. Step 2: Convert to fraction form
    5,540.43/8,315.50 = 3,078.03/x
  3. Step 3: Cross multiply
    5,540.43x = 8,315.50 × 3,078.03
  4. Step 4: Simplify right side
    5,540.43x = 25,595,358.47
  5. Step 5: Solve for x
    x = 25,595,358.47/5,540.43
  6. Step 6: Final answer
    x = 4,619.74

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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.