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Finding the Fourth Proportional to 3,879.26, 5,818.89 and 3,300.92

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Solution

The fourth proportional to 3,879.26, 5,818.89 and 3,300.92 is: 4,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.26 : 5,818.89 = 3,300.92 : x
  2. Step 2: Convert to fraction form
    3,879.26/5,818.89 = 3,300.92/x
  3. Step 3: Cross multiply
    3,879.26x = 5,818.89 × 3,300.92
  4. Step 4: Simplify right side
    3,879.26x = 19,207,690.38
  5. Step 5: Solve for x
    x = 19,207,690.38/3,879.26
  6. Step 6: Final answer
    x = 4,951.38

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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.