Home / 3,919.22-5,408.62-2,217.59

Finding the Fourth Proportional to 3,919.22, 5,408.62 and 2,217.59

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Solution

The fourth proportional to 3,919.22, 5,408.62 and 2,217.59 is: 3,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.22 : 5,408.62 = 2,217.59 : x
  2. Step 2: Convert to fraction form
    3,919.22/5,408.62 = 2,217.59/x
  3. Step 3: Cross multiply
    3,919.22x = 5,408.62 × 2,217.59
  4. Step 4: Simplify right side
    3,919.22x = 11,994,101.63
  5. Step 5: Solve for x
    x = 11,994,101.63/3,919.22
  6. Step 6: Final answer
    x = 3,060.33

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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.