Home / 3,994.82-5,505.25-2,873.78

Finding the Fourth Proportional to 3,994.82, 5,505.25 and 2,873.78

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Solution

The fourth proportional to 3,994.82, 5,505.25 and 2,873.78 is: 3,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.82 : 5,505.25 = 2,873.78 : x
  2. Step 2: Convert to fraction form
    3,994.82/5,505.25 = 2,873.78/x
  3. Step 3: Cross multiply
    3,994.82x = 5,505.25 × 2,873.78
  4. Step 4: Simplify right side
    3,994.82x = 15,820,877.35
  5. Step 5: Solve for x
    x = 15,820,877.35/3,994.82
  6. Step 6: Final answer
    x = 3,960.35

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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.