Home / 6,077.20-9,117.30-2,789.60

Finding the Fourth Proportional to 6,077.20, 9,117.30 and 2,789.60

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Solution

The fourth proportional to 6,077.20, 9,117.30 and 2,789.60 is: 4,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077.20 : 9,117.30 = 2,789.60 : x
  2. Step 2: Convert to fraction form
    6,077.20/9,117.30 = 2,789.60/x
  3. Step 3: Cross multiply
    6,077.20x = 9,117.30 × 2,789.60
  4. Step 4: Simplify right side
    6,077.20x = 25,433,620.08
  5. Step 5: Solve for x
    x = 25,433,620.08/6,077.20
  6. Step 6: Final answer
    x = 4,185.09

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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.