Home / 3,609.32-5,408.31-2,789.60

Finding the Fourth Proportional to 3,609.32, 5,408.31 and 2,789.60

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Solution

The fourth proportional to 3,609.32, 5,408.31 and 2,789.60 is: 4,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.32 : 5,408.31 = 2,789.60 : x
  2. Step 2: Convert to fraction form
    3,609.32/5,408.31 = 2,789.60/x
  3. Step 3: Cross multiply
    3,609.32x = 5,408.31 × 2,789.60
  4. Step 4: Simplify right side
    3,609.32x = 15,087,021.58
  5. Step 5: Solve for x
    x = 15,087,021.58/3,609.32
  6. Step 6: Final answer
    x = 4,180.02

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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.