Home / 2,168.27-3,253.56-2,129.66

Finding the Fourth Proportional to 2,168.27, 3,253.56 and 2,129.66

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Solution

The fourth proportional to 2,168.27, 3,253.56 and 2,129.66 is: 3,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.27 : 3,253.56 = 2,129.66 : x
  2. Step 2: Convert to fraction form
    2,168.27/3,253.56 = 2,129.66/x
  3. Step 3: Cross multiply
    2,168.27x = 3,253.56 × 2,129.66
  4. Step 4: Simplify right side
    2,168.27x = 6,928,976.59
  5. Step 5: Solve for x
    x = 6,928,976.59/2,168.27
  6. Step 6: Final answer
    x = 3,195.62

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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.