Home / 3,923.29-5,408.85-3,361.33

Finding the Fourth Proportional to 3,923.29, 5,408.85 and 3,361.33

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Solution

The fourth proportional to 3,923.29, 5,408.85 and 3,361.33 is: 4,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.29 : 5,408.85 = 3,361.33 : x
  2. Step 2: Convert to fraction form
    3,923.29/5,408.85 = 3,361.33/x
  3. Step 3: Cross multiply
    3,923.29x = 5,408.85 × 3,361.33
  4. Step 4: Simplify right side
    3,923.29x = 18,180,929.77
  5. Step 5: Solve for x
    x = 18,180,929.77/3,923.29
  6. Step 6: Final answer
    x = 4,634.10

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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.