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Finding the Fourth Proportional to 2,195.43, 3,292.97 and 656.43

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Solution

The fourth proportional to 2,195.43, 3,292.97 and 656.43 is: 984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.43 : 3,292.97 = 656.43 : x
  2. Step 2: Convert to fraction form
    2,195.43/3,292.97 = 656.43/x
  3. Step 3: Cross multiply
    2,195.43x = 3,292.97 × 656.43
  4. Step 4: Simplify right side
    2,195.43x = 2,161,601.01
  5. Step 5: Solve for x
    x = 2,161,601.01/2,195.43
  6. Step 6: Final answer
    x = 984.59

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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.