Home / 6,120.80-8,448.24-3,469.79

Finding the Fourth Proportional to 6,120.80, 8,448.24 and 3,469.79

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Solution

The fourth proportional to 6,120.80, 8,448.24 and 3,469.79 is: 4,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.80 : 8,448.24 = 3,469.79 : x
  2. Step 2: Convert to fraction form
    6,120.80/8,448.24 = 3,469.79/x
  3. Step 3: Cross multiply
    6,120.80x = 8,448.24 × 3,469.79
  4. Step 4: Simplify right side
    6,120.80x = 29,313,618.67
  5. Step 5: Solve for x
    x = 29,313,618.67/6,120.80
  6. Step 6: Final answer
    x = 4,789.18

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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.