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Finding the Fourth Proportional to 2,226.66, 3,340.79 and 993.96

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Solution

The fourth proportional to 2,226.66, 3,340.79 and 993.96 is: 1,491.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.66 : 3,340.79 = 993.96 : x
  2. Step 2: Convert to fraction form
    2,226.66/3,340.79 = 993.96/x
  3. Step 3: Cross multiply
    2,226.66x = 3,340.79 × 993.96
  4. Step 4: Simplify right side
    2,226.66x = 3,320,606.66
  5. Step 5: Solve for x
    x = 3,320,606.66/2,226.66
  6. Step 6: Final answer
    x = 1,491.29

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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.