Home / 6,728.82-9,287.25-3,898.14

Finding the Fourth Proportional to 6,728.82, 9,287.25 and 3,898.14

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Solution

The fourth proportional to 6,728.82, 9,287.25 and 3,898.14 is: 5,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.82 : 9,287.25 = 3,898.14 : x
  2. Step 2: Convert to fraction form
    6,728.82/9,287.25 = 3,898.14/x
  3. Step 3: Cross multiply
    6,728.82x = 9,287.25 × 3,898.14
  4. Step 4: Simplify right side
    6,728.82x = 36,203,000.72
  5. Step 5: Solve for x
    x = 36,203,000.72/6,728.82
  6. Step 6: Final answer
    x = 5,380.29

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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.