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Finding the Fourth Proportional to 3,959.40, 5,939.05 and 2,326.31

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Solution

The fourth proportional to 3,959.40, 5,939.05 and 2,326.31 is: 3,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.40 : 5,939.05 = 2,326.31 : x
  2. Step 2: Convert to fraction form
    3,959.40/5,939.05 = 2,326.31/x
  3. Step 3: Cross multiply
    3,959.40x = 5,939.05 × 2,326.31
  4. Step 4: Simplify right side
    3,959.40x = 13,816,030.08
  5. Step 5: Solve for x
    x = 13,816,030.08/3,959.40
  6. Step 6: Final answer
    x = 3,489.43

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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.