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Finding the Fourth Proportional to 3,879.57, 5,351.39 and 2,366.44

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Solution

The fourth proportional to 3,879.57, 5,351.39 and 2,366.44 is: 3,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.57 : 5,351.39 = 2,366.44 : x
  2. Step 2: Convert to fraction form
    3,879.57/5,351.39 = 2,366.44/x
  3. Step 3: Cross multiply
    3,879.57x = 5,351.39 × 2,366.44
  4. Step 4: Simplify right side
    3,879.57x = 12,663,748.72
  5. Step 5: Solve for x
    x = 12,663,748.72/3,879.57
  6. Step 6: Final answer
    x = 3,264.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.