Home / 3,872.72-5,344.39-2,104.33

Finding the Fourth Proportional to 3,872.72, 5,344.39 and 2,104.33

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Solution

The fourth proportional to 3,872.72, 5,344.39 and 2,104.33 is: 2,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.72 : 5,344.39 = 2,104.33 : x
  2. Step 2: Convert to fraction form
    3,872.72/5,344.39 = 2,104.33/x
  3. Step 3: Cross multiply
    3,872.72x = 5,344.39 × 2,104.33
  4. Step 4: Simplify right side
    3,872.72x = 11,246,359.51
  5. Step 5: Solve for x
    x = 11,246,359.51/3,872.72
  6. Step 6: Final answer
    x = 2,903.99

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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.