Home / 6,481.04-9,721.49-2,098.40

Finding the Fourth Proportional to 6,481.04, 9,721.49 and 2,098.40

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Solution

The fourth proportional to 6,481.04, 9,721.49 and 2,098.40 is: 3,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.04 : 9,721.49 = 2,098.40 : x
  2. Step 2: Convert to fraction form
    6,481.04/9,721.49 = 2,098.40/x
  3. Step 3: Cross multiply
    6,481.04x = 9,721.49 × 2,098.40
  4. Step 4: Simplify right side
    6,481.04x = 20,399,515.52
  5. Step 5: Solve for x
    x = 20,399,515.52/6,481.04
  6. Step 6: Final answer
    x = 3,147.57

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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.