Home / 6,979.42-10,469.12-1,785.30

Finding the Fourth Proportional to 6,979.42, 10,469.12 and 1,785.30

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Solution

The fourth proportional to 6,979.42, 10,469.12 and 1,785.30 is: 2,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.42 : 10,469.12 = 1,785.30 : x
  2. Step 2: Convert to fraction form
    6,979.42/10,469.12 = 1,785.30/x
  3. Step 3: Cross multiply
    6,979.42x = 10,469.12 × 1,785.30
  4. Step 4: Simplify right side
    6,979.42x = 18,690,519.94
  5. Step 5: Solve for x
    x = 18,690,519.94/6,979.42
  6. Step 6: Final answer
    x = 2,677.95

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Similar ratio
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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.