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Finding the Fourth Proportional to 1,832.75, 2,747.82 and 858.32

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Solution

The fourth proportional to 1,832.75, 2,747.82 and 858.32 is: 1,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832.75 : 2,747.82 = 858.32 : x
  2. Step 2: Convert to fraction form
    1,832.75/2,747.82 = 858.32/x
  3. Step 3: Cross multiply
    1,832.75x = 2,747.82 × 858.32
  4. Step 4: Simplify right side
    1,832.75x = 2,358,508.86
  5. Step 5: Solve for x
    x = 2,358,508.86/1,832.75
  6. Step 6: Final answer
    x = 1,286.87

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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.