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Finding the Fourth Proportional to 2,151.59, 3,227.58 and 852.75

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Solution

The fourth proportional to 2,151.59, 3,227.58 and 852.75 is: 1,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.59 : 3,227.58 = 852.75 : x
  2. Step 2: Convert to fraction form
    2,151.59/3,227.58 = 852.75/x
  3. Step 3: Cross multiply
    2,151.59x = 3,227.58 × 852.75
  4. Step 4: Simplify right side
    2,151.59x = 2,752,318.85
  5. Step 5: Solve for x
    x = 2,752,318.85/2,151.59
  6. Step 6: Final answer
    x = 1,279.21

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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.