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Finding the Fourth Proportional to 3,956.72, 5,935.15 and 3,260.66

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Solution

The fourth proportional to 3,956.72, 5,935.15 and 3,260.66 is: 4,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.72 : 5,935.15 = 3,260.66 : x
  2. Step 2: Convert to fraction form
    3,956.72/5,935.15 = 3,260.66/x
  3. Step 3: Cross multiply
    3,956.72x = 5,935.15 × 3,260.66
  4. Step 4: Simplify right side
    3,956.72x = 19,352,506.20
  5. Step 5: Solve for x
    x = 19,352,506.20/3,956.72
  6. Step 6: Final answer
    x = 4,891.05

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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.