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Finding the Fourth Proportional to 3,958.21, 5,924.98 and 2,919.39

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Solution

The fourth proportional to 3,958.21, 5,924.98 and 2,919.39 is: 4,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.21 : 5,924.98 = 2,919.39 : x
  2. Step 2: Convert to fraction form
    3,958.21/5,924.98 = 2,919.39/x
  3. Step 3: Cross multiply
    3,958.21x = 5,924.98 × 2,919.39
  4. Step 4: Simplify right side
    3,958.21x = 17,297,327.36
  5. Step 5: Solve for x
    x = 17,297,327.36/3,958.21
  6. Step 6: Final answer
    x = 4,369.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.