Home / 6,076.20-9,115.80-2,788.60

Finding the Fourth Proportional to 6,076.20, 9,115.80 and 2,788.60

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Solution

The fourth proportional to 6,076.20, 9,115.80 and 2,788.60 is: 4,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,076.20 : 9,115.80 = 2,788.60 : x
  2. Step 2: Convert to fraction form
    6,076.20/9,115.80 = 2,788.60/x
  3. Step 3: Cross multiply
    6,076.20x = 9,115.80 × 2,788.60
  4. Step 4: Simplify right side
    6,076.20x = 25,420,319.88
  5. Step 5: Solve for x
    x = 25,420,319.88/6,076.20
  6. Step 6: Final answer
    x = 4,183.59

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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.