Home / 3,908.41-5,391.01-2,789.98

Finding the Fourth Proportional to 3,908.41, 5,391.01 and 2,789.98

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Solution

The fourth proportional to 3,908.41, 5,391.01 and 2,789.98 is: 3,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.41 : 5,391.01 = 2,789.98 : x
  2. Step 2: Convert to fraction form
    3,908.41/5,391.01 = 2,789.98/x
  3. Step 3: Cross multiply
    3,908.41x = 5,391.01 × 2,789.98
  4. Step 4: Simplify right side
    3,908.41x = 15,040,789.63
  5. Step 5: Solve for x
    x = 15,040,789.63/3,908.41
  6. Step 6: Final answer
    x = 3,848.32

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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.