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Finding the Fourth Proportional to 6,723.84, 9,279.13 and 3,699.09

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Solution

The fourth proportional to 6,723.84, 9,279.13 and 3,699.09 is: 5,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.84 : 9,279.13 = 3,699.09 : x
  2. Step 2: Convert to fraction form
    6,723.84/9,279.13 = 3,699.09/x
  3. Step 3: Cross multiply
    6,723.84x = 9,279.13 × 3,699.09
  4. Step 4: Simplify right side
    6,723.84x = 34,324,336.99
  5. Step 5: Solve for x
    x = 34,324,336.99/6,723.84
  6. Step 6: Final answer
    x = 5,104.87

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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.