Home / 6,724.36-9,278.96-3,891.17

Finding the Fourth Proportional to 6,724.36, 9,278.96 and 3,891.17

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Solution

The fourth proportional to 6,724.36, 9,278.96 and 3,891.17 is: 5,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.36 : 9,278.96 = 3,891.17 : x
  2. Step 2: Convert to fraction form
    6,724.36/9,278.96 = 3,891.17/x
  3. Step 3: Cross multiply
    6,724.36x = 9,278.96 × 3,891.17
  4. Step 4: Simplify right side
    6,724.36x = 36,105,964.39
  5. Step 5: Solve for x
    x = 36,105,964.39/6,724.36
  6. Step 6: Final answer
    x = 5,369.43

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Similar ratio
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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.