Home / 6,908.60-10,363.66-1,979.04

Finding the Fourth Proportional to 6,908.60, 10,363.66 and 1,979.04

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Solution

The fourth proportional to 6,908.60, 10,363.66 and 1,979.04 is: 2,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908.60 : 10,363.66 = 1,979.04 : x
  2. Step 2: Convert to fraction form
    6,908.60/10,363.66 = 1,979.04/x
  3. Step 3: Cross multiply
    6,908.60x = 10,363.66 × 1,979.04
  4. Step 4: Simplify right side
    6,908.60x = 20,510,087.79
  5. Step 5: Solve for x
    x = 20,510,087.79/6,908.60
  6. Step 6: Final answer
    x = 2,968.78

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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.