Home / 3,840.44-5,299.73-2,138.94

Finding the Fourth Proportional to 3,840.44, 5,299.73 and 2,138.94

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Solution

The fourth proportional to 3,840.44, 5,299.73 and 2,138.94 is: 2,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.44 : 5,299.73 = 2,138.94 : x
  2. Step 2: Convert to fraction form
    3,840.44/5,299.73 = 2,138.94/x
  3. Step 3: Cross multiply
    3,840.44x = 5,299.73 × 2,138.94
  4. Step 4: Simplify right side
    3,840.44x = 11,335,789.87
  5. Step 5: Solve for x
    x = 11,335,789.87/3,840.44
  6. Step 6: Final answer
    x = 2,951.69

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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.