Home / 6,728.38-10,089.87-2,780.25

Finding the Fourth Proportional to 6,728.38, 10,089.87 and 2,780.25

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Solution

The fourth proportional to 6,728.38, 10,089.87 and 2,780.25 is: 4,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.38 : 10,089.87 = 2,780.25 : x
  2. Step 2: Convert to fraction form
    6,728.38/10,089.87 = 2,780.25/x
  3. Step 3: Cross multiply
    6,728.38x = 10,089.87 × 2,780.25
  4. Step 4: Simplify right side
    6,728.38x = 28,052,310.62
  5. Step 5: Solve for x
    x = 28,052,310.62/6,728.38
  6. Step 6: Final answer
    x = 4,169.25

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1.5x scale

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.