Home / 6,728.60-9,285.38-3,896.36

Finding the Fourth Proportional to 6,728.60, 9,285.38 and 3,896.36

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Solution

The fourth proportional to 6,728.60, 9,285.38 and 3,896.36 is: 5,376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.60 : 9,285.38 = 3,896.36 : x
  2. Step 2: Convert to fraction form
    6,728.60/9,285.38 = 3,896.36/x
  3. Step 3: Cross multiply
    6,728.60x = 9,285.38 × 3,896.36
  4. Step 4: Simplify right side
    6,728.60x = 36,179,183.22
  5. Step 5: Solve for x
    x = 36,179,183.22/6,728.60
  6. Step 6: Final answer
    x = 5,376.93

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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.