Home / 3,910.62-5,396.46-2,141.84

Finding the Fourth Proportional to 3,910.62, 5,396.46 and 2,141.84

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Solution

The fourth proportional to 3,910.62, 5,396.46 and 2,141.84 is: 2,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.62 : 5,396.46 = 2,141.84 : x
  2. Step 2: Convert to fraction form
    3,910.62/5,396.46 = 2,141.84/x
  3. Step 3: Cross multiply
    3,910.62x = 5,396.46 × 2,141.84
  4. Step 4: Simplify right side
    3,910.62x = 11,558,353.89
  5. Step 5: Solve for x
    x = 11,558,353.89/3,910.62
  6. Step 6: Final answer
    x = 2,955.63

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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.