Home / 2,226.96-3,073.20-1,218.68

Finding the Fourth Proportional to 2,226.96, 3,073.20 and 1,218.68

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Solution

The fourth proportional to 2,226.96, 3,073.20 and 1,218.68 is: 1,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.96 : 3,073.20 = 1,218.68 : x
  2. Step 2: Convert to fraction form
    2,226.96/3,073.20 = 1,218.68/x
  3. Step 3: Cross multiply
    2,226.96x = 3,073.20 × 1,218.68
  4. Step 4: Simplify right side
    2,226.96x = 3,745,247.38
  5. Step 5: Solve for x
    x = 3,745,247.38/2,226.96
  6. Step 6: Final answer
    x = 1,681.78

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.