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Finding the Fourth Proportional to 6,810.60, 9,398.99 and 3,786.05

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Solution

The fourth proportional to 6,810.60, 9,398.99 and 3,786.05 is: 5,224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.60 : 9,398.99 = 3,786.05 : x
  2. Step 2: Convert to fraction form
    6,810.60/9,398.99 = 3,786.05/x
  3. Step 3: Cross multiply
    6,810.60x = 9,398.99 × 3,786.05
  4. Step 4: Simplify right side
    6,810.60x = 35,585,046.09
  5. Step 5: Solve for x
    x = 35,585,046.09/6,810.60
  6. Step 6: Final answer
    x = 5,224.95

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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.