Home / 6,870.92-9,481.79-3,727.09

Finding the Fourth Proportional to 6,870.92, 9,481.79 and 3,727.09

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Solution

The fourth proportional to 6,870.92, 9,481.79 and 3,727.09 is: 5,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.92 : 9,481.79 = 3,727.09 : x
  2. Step 2: Convert to fraction form
    6,870.92/9,481.79 = 3,727.09/x
  3. Step 3: Cross multiply
    6,870.92x = 9,481.79 × 3,727.09
  4. Step 4: Simplify right side
    6,870.92x = 35,339,418.65
  5. Step 5: Solve for x
    x = 35,339,418.65/6,870.92
  6. Step 6: Final answer
    x = 5,143.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.