Home / 3,919.05-5,408.76-2,427.44

Finding the Fourth Proportional to 3,919.05, 5,408.76 and 2,427.44

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Solution

The fourth proportional to 3,919.05, 5,408.76 and 2,427.44 is: 3,350.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.05 : 5,408.76 = 2,427.44 : x
  2. Step 2: Convert to fraction form
    3,919.05/5,408.76 = 2,427.44/x
  3. Step 3: Cross multiply
    3,919.05x = 5,408.76 × 2,427.44
  4. Step 4: Simplify right side
    3,919.05x = 13,129,422.43
  5. Step 5: Solve for x
    x = 13,129,422.43/3,919.05
  6. Step 6: Final answer
    x = 3,350.15

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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.