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Finding the Fourth Proportional to 6,891.67, 10,328.22 and 3,766.98

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Solution

The fourth proportional to 6,891.67, 10,328.22 and 3,766.98 is: 5,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.67 : 10,328.22 = 3,766.98 : x
  2. Step 2: Convert to fraction form
    6,891.67/10,328.22 = 3,766.98/x
  3. Step 3: Cross multiply
    6,891.67x = 10,328.22 × 3,766.98
  4. Step 4: Simplify right side
    6,891.67x = 38,906,158.23
  5. Step 5: Solve for x
    x = 38,906,158.23/6,891.67
  6. Step 6: Final answer
    x = 5,645.39

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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.