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Finding the Third Proportional to 3,784 and 5,543

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Solution

The third proportional to 3,784 and 5,543 is: 8,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784 : 5,543 = 5,543 : x
  2. Step 2: Convert to fraction form
    3,784/5,543 = 5,543/x
  3. Step 3: Cross multiply
    3,784x = 5,543 × 5,543
  4. Step 4: Simplify right side
    3,784x = 30,724,849
  5. Step 5: Solve for x
    x = 30,724,849/3,784
  6. Step 6: Final answer
    x = 8,119.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.