Home / 3,789.66-5,229.72-2,111.14

Finding the Fourth Proportional to 3,789.66, 5,229.72 and 2,111.14

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Solution

The fourth proportional to 3,789.66, 5,229.72 and 2,111.14 is: 2,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.66 : 5,229.72 = 2,111.14 : x
  2. Step 2: Convert to fraction form
    3,789.66/5,229.72 = 2,111.14/x
  3. Step 3: Cross multiply
    3,789.66x = 5,229.72 × 2,111.14
  4. Step 4: Simplify right side
    3,789.66x = 11,040,671.08
  5. Step 5: Solve for x
    x = 11,040,671.08/3,789.66
  6. Step 6: Final answer
    x = 2,913.37

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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.