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Finding the Fourth Proportional to 6,744.80, 9,309.04 and 4,229.09

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Solution

The fourth proportional to 6,744.80, 9,309.04 and 4,229.09 is: 5,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,744.80 : 9,309.04 = 4,229.09 : x
  2. Step 2: Convert to fraction form
    6,744.80/9,309.04 = 4,229.09/x
  3. Step 3: Cross multiply
    6,744.80x = 9,309.04 × 4,229.09
  4. Step 4: Simplify right side
    6,744.80x = 39,368,746.83
  5. Step 5: Solve for x
    x = 39,368,746.83/6,744.80
  6. Step 6: Final answer
    x = 5,836.91

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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.