Home / 3,100.28-4,275.04-2,105.66

Finding the Fourth Proportional to 3,100.28, 4,275.04 and 2,105.66

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Solution

The fourth proportional to 3,100.28, 4,275.04 and 2,105.66 is: 2,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.28 : 4,275.04 = 2,105.66 : x
  2. Step 2: Convert to fraction form
    3,100.28/4,275.04 = 2,105.66/x
  3. Step 3: Cross multiply
    3,100.28x = 4,275.04 × 2,105.66
  4. Step 4: Simplify right side
    3,100.28x = 9,001,780.73
  5. Step 5: Solve for x
    x = 9,001,780.73/3,100.28
  6. Step 6: Final answer
    x = 2,903.54

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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.