Home / 3,919.36-5,408.68-2,241.28

Finding the Fourth Proportional to 3,919.36, 5,408.68 and 2,241.28

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Solution

The fourth proportional to 3,919.36, 5,408.68 and 2,241.28 is: 3,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.36 : 5,408.68 = 2,241.28 : x
  2. Step 2: Convert to fraction form
    3,919.36/5,408.68 = 2,241.28/x
  3. Step 3: Cross multiply
    3,919.36x = 5,408.68 × 2,241.28
  4. Step 4: Simplify right side
    3,919.36x = 12,122,366.31
  5. Step 5: Solve for x
    x = 12,122,366.31/3,919.36
  6. Step 6: Final answer
    x = 3,092.95

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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.