Home / 3,979.06-5,968.69-3,398.09

Finding the Fourth Proportional to 3,979.06, 5,968.69 and 3,398.09

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Solution

The fourth proportional to 3,979.06, 5,968.69 and 3,398.09 is: 5,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.06 : 5,968.69 = 3,398.09 : x
  2. Step 2: Convert to fraction form
    3,979.06/5,968.69 = 3,398.09/x
  3. Step 3: Cross multiply
    3,979.06x = 5,968.69 × 3,398.09
  4. Step 4: Simplify right side
    3,979.06x = 20,282,107.46
  5. Step 5: Solve for x
    x = 20,282,107.46/3,979.06
  6. Step 6: Final answer
    x = 5,097.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.