Home / 3,857.44-5,789.40-2,127.28

Finding the Fourth Proportional to 3,857.44, 5,789.40 and 2,127.28

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Solution

The fourth proportional to 3,857.44, 5,789.40 and 2,127.28 is: 3,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.44 : 5,789.40 = 2,127.28 : x
  2. Step 2: Convert to fraction form
    3,857.44/5,789.40 = 2,127.28/x
  3. Step 3: Cross multiply
    3,857.44x = 5,789.40 × 2,127.28
  4. Step 4: Simplify right side
    3,857.44x = 12,315,674.83
  5. Step 5: Solve for x
    x = 12,315,674.83/3,857.44
  6. Step 6: Final answer
    x = 3,192.71

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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.