Home / 3,872.87-5,344.53-2,104.43

Finding the Fourth Proportional to 3,872.87, 5,344.53 and 2,104.43

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Solution

The fourth proportional to 3,872.87, 5,344.53 and 2,104.43 is: 2,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.87 : 5,344.53 = 2,104.43 : x
  2. Step 2: Convert to fraction form
    3,872.87/5,344.53 = 2,104.43/x
  3. Step 3: Cross multiply
    3,872.87x = 5,344.53 × 2,104.43
  4. Step 4: Simplify right side
    3,872.87x = 11,247,162.55
  5. Step 5: Solve for x
    x = 11,247,162.55/3,872.87
  6. Step 6: Final answer
    x = 2,904.09

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1.5x scale

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.