Home / 3,912.20-5,396.08-2,339

Finding the Fourth Proportional to 3,912.20, 5,396.08 and 2,339

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Solution

The fourth proportional to 3,912.20, 5,396.08 and 2,339 is: 3,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.20 : 5,396.08 = 2,339 : x
  2. Step 2: Convert to fraction form
    3,912.20/5,396.08 = 2,339/x
  3. Step 3: Cross multiply
    3,912.20x = 5,396.08 × 2,339
  4. Step 4: Simplify right side
    3,912.20x = 12,621,431.12
  5. Step 5: Solve for x
    x = 12,621,431.12/3,912.20
  6. Step 6: Final answer
    x = 3,226.17

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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.