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Finding the Fourth Proportional to 6,778.49, 10,168.13 and 2,619.14

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Solution

The fourth proportional to 6,778.49, 10,168.13 and 2,619.14 is: 3,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.49 : 10,168.13 = 2,619.14 : x
  2. Step 2: Convert to fraction form
    6,778.49/10,168.13 = 2,619.14/x
  3. Step 3: Cross multiply
    6,778.49x = 10,168.13 × 2,619.14
  4. Step 4: Simplify right side
    6,778.49x = 26,631,711.72
  5. Step 5: Solve for x
    x = 26,631,711.72/6,778.49
  6. Step 6: Final answer
    x = 3,928.86

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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.