Home / 6,481.40-9,721.98-2,098.86

Finding the Fourth Proportional to 6,481.40, 9,721.98 and 2,098.86

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Solution

The fourth proportional to 6,481.40, 9,721.98 and 2,098.86 is: 3,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.40 : 9,721.98 = 2,098.86 : x
  2. Step 2: Convert to fraction form
    6,481.40/9,721.98 = 2,098.86/x
  3. Step 3: Cross multiply
    6,481.40x = 9,721.98 × 2,098.86
  4. Step 4: Simplify right side
    6,481.40x = 20,405,074.94
  5. Step 5: Solve for x
    x = 20,405,074.94/6,481.40
  6. Step 6: Final answer
    x = 3,148.25

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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.