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Finding the Fourth Proportional to 5,424.73, 8,137.09 and 1,961.17

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Solution

The fourth proportional to 5,424.73, 8,137.09 and 1,961.17 is: 2,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.73 : 8,137.09 = 1,961.17 : x
  2. Step 2: Convert to fraction form
    5,424.73/8,137.09 = 1,961.17/x
  3. Step 3: Cross multiply
    5,424.73x = 8,137.09 × 1,961.17
  4. Step 4: Simplify right side
    5,424.73x = 15,958,176.11
  5. Step 5: Solve for x
    x = 15,958,176.11/5,424.73
  6. Step 6: Final answer
    x = 2,941.75

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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.