Home / 6,728.75-9,285.38-4,490.33

Finding the Fourth Proportional to 6,728.75, 9,285.38 and 4,490.33

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Solution

The fourth proportional to 6,728.75, 9,285.38 and 4,490.33 is: 6,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.75 : 9,285.38 = 4,490.33 : x
  2. Step 2: Convert to fraction form
    6,728.75/9,285.38 = 4,490.33/x
  3. Step 3: Cross multiply
    6,728.75x = 9,285.38 × 4,490.33
  4. Step 4: Simplify right side
    6,728.75x = 41,694,351.50
  5. Step 5: Solve for x
    x = 41,694,351.50/6,728.75
  6. Step 6: Final answer
    x = 6,196.45

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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.