Home / 5,121.97-7,676.87-2,194.09

Finding the Fourth Proportional to 5,121.97, 7,676.87 and 2,194.09

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Solution

The fourth proportional to 5,121.97, 7,676.87 and 2,194.09 is: 3,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.97 : 7,676.87 = 2,194.09 : x
  2. Step 2: Convert to fraction form
    5,121.97/7,676.87 = 2,194.09/x
  3. Step 3: Cross multiply
    5,121.97x = 7,676.87 × 2,194.09
  4. Step 4: Simplify right side
    5,121.97x = 16,843,705.31
  5. Step 5: Solve for x
    x = 16,843,705.31/5,121.97
  6. Step 6: Final answer
    x = 3,288.52

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1.5x scale

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.