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Finding the Fourth Proportional to 6,662.46, 9,994.67 and 2,218.62

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Solution

The fourth proportional to 6,662.46, 9,994.67 and 2,218.62 is: 3,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.46 : 9,994.67 = 2,218.62 : x
  2. Step 2: Convert to fraction form
    6,662.46/9,994.67 = 2,218.62/x
  3. Step 3: Cross multiply
    6,662.46x = 9,994.67 × 2,218.62
  4. Step 4: Simplify right side
    6,662.46x = 22,174,363.66
  5. Step 5: Solve for x
    x = 22,174,363.66/6,662.46
  6. Step 6: Final answer
    x = 3,328.25

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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.