Home / 3,899.84-5,849.78-2,163.20

Finding the Fourth Proportional to 3,899.84, 5,849.78 and 2,163.20

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Solution

The fourth proportional to 3,899.84, 5,849.78 and 2,163.20 is: 3,244.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.84 : 5,849.78 = 2,163.20 : x
  2. Step 2: Convert to fraction form
    3,899.84/5,849.78 = 2,163.20/x
  3. Step 3: Cross multiply
    3,899.84x = 5,849.78 × 2,163.20
  4. Step 4: Simplify right side
    3,899.84x = 12,654,244.10
  5. Step 5: Solve for x
    x = 12,654,244.10/3,899.84
  6. Step 6: Final answer
    x = 3,244.81

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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.