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Finding the Fourth Proportional to 6,979.56, 10,469.34 and 2,049.17

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Solution

The fourth proportional to 6,979.56, 10,469.34 and 2,049.17 is: 3,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.56 : 10,469.34 = 2,049.17 : x
  2. Step 2: Convert to fraction form
    6,979.56/10,469.34 = 2,049.17/x
  3. Step 3: Cross multiply
    6,979.56x = 10,469.34 × 2,049.17
  4. Step 4: Simplify right side
    6,979.56x = 21,453,405.10
  5. Step 5: Solve for x
    x = 21,453,405.10/6,979.56
  6. Step 6: Final answer
    x = 3,073.75

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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.