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Finding the Fourth Proportional to 6,481.51, 9,721.04 and 2,321.35

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Solution

The fourth proportional to 6,481.51, 9,721.04 and 2,321.35 is: 3,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.51 : 9,721.04 = 2,321.35 : x
  2. Step 2: Convert to fraction form
    6,481.51/9,721.04 = 2,321.35/x
  3. Step 3: Cross multiply
    6,481.51x = 9,721.04 × 2,321.35
  4. Step 4: Simplify right side
    6,481.51x = 22,565,900.29
  5. Step 5: Solve for x
    x = 22,565,900.29/6,481.51
  6. Step 6: Final answer
    x = 3,481.58

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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.