Home / 6,781.80-9,358.91-3,797.69

Finding the Fourth Proportional to 6,781.80, 9,358.91 and 3,797.69

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Solution

The fourth proportional to 6,781.80, 9,358.91 and 3,797.69 is: 5,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.80 : 9,358.91 = 3,797.69 : x
  2. Step 2: Convert to fraction form
    6,781.80/9,358.91 = 3,797.69/x
  3. Step 3: Cross multiply
    6,781.80x = 9,358.91 × 3,797.69
  4. Step 4: Simplify right side
    6,781.80x = 35,542,173.13
  5. Step 5: Solve for x
    x = 35,542,173.13/6,781.80
  6. Step 6: Final answer
    x = 5,240.82

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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.