Home / 3,872.85-5,344.46-2,104.50

Finding the Fourth Proportional to 3,872.85, 5,344.46 and 2,104.50

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Solution

The fourth proportional to 3,872.85, 5,344.46 and 2,104.50 is: 2,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.85 : 5,344.46 = 2,104.50 : x
  2. Step 2: Convert to fraction form
    3,872.85/5,344.46 = 2,104.50/x
  3. Step 3: Cross multiply
    3,872.85x = 5,344.46 × 2,104.50
  4. Step 4: Simplify right side
    3,872.85x = 11,247,405.55
  5. Step 5: Solve for x
    x = 11,247,405.55/3,872.85
  6. Step 6: Final answer
    x = 2,904.17

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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.