Home / 6,728.06-9,284.79-3,933.56

Finding the Fourth Proportional to 6,728.06, 9,284.79 and 3,933.56

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Solution

The fourth proportional to 6,728.06, 9,284.79 and 3,933.56 is: 5,428.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.06 : 9,284.79 = 3,933.56 : x
  2. Step 2: Convert to fraction form
    6,728.06/9,284.79 = 3,933.56/x
  3. Step 3: Cross multiply
    6,728.06x = 9,284.79 × 3,933.56
  4. Step 4: Simplify right side
    6,728.06x = 36,522,278.55
  5. Step 5: Solve for x
    x = 36,522,278.55/6,728.06
  6. Step 6: Final answer
    x = 5,428.35

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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.