Home / 3,100.70-4,273.62-2,105.48

Finding the Fourth Proportional to 3,100.70, 4,273.62 and 2,105.48

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Solution

The fourth proportional to 3,100.70, 4,273.62 and 2,105.48 is: 2,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.70 : 4,273.62 = 2,105.48 : x
  2. Step 2: Convert to fraction form
    3,100.70/4,273.62 = 2,105.48/x
  3. Step 3: Cross multiply
    3,100.70x = 4,273.62 × 2,105.48
  4. Step 4: Simplify right side
    3,100.70x = 8,998,021.44
  5. Step 5: Solve for x
    x = 8,998,021.44/3,100.70
  6. Step 6: Final answer
    x = 2,901.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.