Home / 6,685.32-10,028.88-2,788.80

Finding the Fourth Proportional to 6,685.32, 10,028.88 and 2,788.80

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Solution

The fourth proportional to 6,685.32, 10,028.88 and 2,788.80 is: 4,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,685.32 : 10,028.88 = 2,788.80 : x
  2. Step 2: Convert to fraction form
    6,685.32/10,028.88 = 2,788.80/x
  3. Step 3: Cross multiply
    6,685.32x = 10,028.88 × 2,788.80
  4. Step 4: Simplify right side
    6,685.32x = 27,968,540.54
  5. Step 5: Solve for x
    x = 27,968,540.54/6,685.32
  6. Step 6: Final answer
    x = 4,183.58

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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.