Home / 3,872.14-5,343.55-2,103.73

Finding the Fourth Proportional to 3,872.14, 5,343.55 and 2,103.73

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Solution

The fourth proportional to 3,872.14, 5,343.55 and 2,103.73 is: 2,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.14 : 5,343.55 = 2,103.73 : x
  2. Step 2: Convert to fraction form
    3,872.14/5,343.55 = 2,103.73/x
  3. Step 3: Cross multiply
    3,872.14x = 5,343.55 × 2,103.73
  4. Step 4: Simplify right side
    3,872.14x = 11,241,367.82
  5. Step 5: Solve for x
    x = 11,241,367.82/3,872.14
  6. Step 6: Final answer
    x = 2,903.14

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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.