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Finding the Fourth Proportional to 6,481.32, 9,725.32 and 2,782.58

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Solution

The fourth proportional to 6,481.32, 9,725.32 and 2,782.58 is: 4,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.32 : 9,725.32 = 2,782.58 : x
  2. Step 2: Convert to fraction form
    6,481.32/9,725.32 = 2,782.58/x
  3. Step 3: Cross multiply
    6,481.32x = 9,725.32 × 2,782.58
  4. Step 4: Simplify right side
    6,481.32x = 27,061,480.93
  5. Step 5: Solve for x
    x = 27,061,480.93/6,481.32
  6. Step 6: Final answer
    x = 4,175.30

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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.