Home / 6,251.78-9,379.19-2,091.83

Finding the Fourth Proportional to 6,251.78, 9,379.19 and 2,091.83

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Solution

The fourth proportional to 6,251.78, 9,379.19 and 2,091.83 is: 3,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,251.78 : 9,379.19 = 2,091.83 : x
  2. Step 2: Convert to fraction form
    6,251.78/9,379.19 = 2,091.83/x
  3. Step 3: Cross multiply
    6,251.78x = 9,379.19 × 2,091.83
  4. Step 4: Simplify right side
    6,251.78x = 19,619,629.35
  5. Step 5: Solve for x
    x = 19,619,629.35/6,251.78
  6. Step 6: Final answer
    x = 3,138.25

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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.