Home / 3,919.74-5,408.83-2,241.09

Finding the Fourth Proportional to 3,919.74, 5,408.83 and 2,241.09

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Solution

The fourth proportional to 3,919.74, 5,408.83 and 2,241.09 is: 3,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.74 : 5,408.83 = 2,241.09 : x
  2. Step 2: Convert to fraction form
    3,919.74/5,408.83 = 2,241.09/x
  3. Step 3: Cross multiply
    3,919.74x = 5,408.83 × 2,241.09
  4. Step 4: Simplify right side
    3,919.74x = 12,121,680.23
  5. Step 5: Solve for x
    x = 12,121,680.23/3,919.74
  6. Step 6: Final answer
    x = 3,092.47

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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.