Home / 3,872.09-5,803.37-1,789.28

Finding the Fourth Proportional to 3,872.09, 5,803.37 and 1,789.28

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Solution

The fourth proportional to 3,872.09, 5,803.37 and 1,789.28 is: 2,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.09 : 5,803.37 = 1,789.28 : x
  2. Step 2: Convert to fraction form
    3,872.09/5,803.37 = 1,789.28/x
  3. Step 3: Cross multiply
    3,872.09x = 5,803.37 × 1,789.28
  4. Step 4: Simplify right side
    3,872.09x = 10,383,815.91
  5. Step 5: Solve for x
    x = 10,383,815.91/3,872.09
  6. Step 6: Final answer
    x = 2,681.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.