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Finding the Fourth Proportional to 6,388.84, 9,572.61 and 2,226.56

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Solution

The fourth proportional to 6,388.84, 9,572.61 and 2,226.56 is: 3,336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.84 : 9,572.61 = 2,226.56 : x
  2. Step 2: Convert to fraction form
    6,388.84/9,572.61 = 2,226.56/x
  3. Step 3: Cross multiply
    6,388.84x = 9,572.61 × 2,226.56
  4. Step 4: Simplify right side
    6,388.84x = 21,313,951.01
  5. Step 5: Solve for x
    x = 21,313,951.01/6,388.84
  6. Step 6: Final answer
    x = 3,336.12

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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.