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Finding the Fourth Proportional to 3,843.66, 5,767.78 and 1,994.76

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Solution

The fourth proportional to 3,843.66, 5,767.78 and 1,994.76 is: 2,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.66 : 5,767.78 = 1,994.76 : x
  2. Step 2: Convert to fraction form
    3,843.66/5,767.78 = 1,994.76/x
  3. Step 3: Cross multiply
    3,843.66x = 5,767.78 × 1,994.76
  4. Step 4: Simplify right side
    3,843.66x = 11,505,336.83
  5. Step 5: Solve for x
    x = 11,505,336.83/3,843.66
  6. Step 6: Final answer
    x = 2,993.33

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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.