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Finding the Fourth Proportional to 2,194.38, 3,291.57 and 634.47

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Solution

The fourth proportional to 2,194.38, 3,291.57 and 634.47 is: 951.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,194.38 : 3,291.57 = 634.47 : x
  2. Step 2: Convert to fraction form
    2,194.38/3,291.57 = 634.47/x
  3. Step 3: Cross multiply
    2,194.38x = 3,291.57 × 634.47
  4. Step 4: Simplify right side
    2,194.38x = 2,088,402.42
  5. Step 5: Solve for x
    x = 2,088,402.42/2,194.38
  6. Step 6: Final answer
    x = 951.71

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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.