Home / 3,939.44-5,436.32-2,171.00

Finding the Fourth Proportional to 3,939.44, 5,436.32 and 2,171.00

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Solution

The fourth proportional to 3,939.44, 5,436.32 and 2,171.00 is: 2,995.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.44 : 5,436.32 = 2,171.00 : x
  2. Step 2: Convert to fraction form
    3,939.44/5,436.32 = 2,171.00/x
  3. Step 3: Cross multiply
    3,939.44x = 5,436.32 × 2,171.00
  4. Step 4: Simplify right side
    3,939.44x = 11,802,253.46
  5. Step 5: Solve for x
    x = 11,802,253.46/3,939.44
  6. Step 6: Final answer
    x = 2,995.93

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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.