Home / 2,206.28-3,310.10-1,231.70

Finding the Fourth Proportional to 2,206.28, 3,310.10 and 1,231.70

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Solution

The fourth proportional to 2,206.28, 3,310.10 and 1,231.70 is: 1,847.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.28 : 3,310.10 = 1,231.70 : x
  2. Step 2: Convert to fraction form
    2,206.28/3,310.10 = 1,231.70/x
  3. Step 3: Cross multiply
    2,206.28x = 3,310.10 × 1,231.70
  4. Step 4: Simplify right side
    2,206.28x = 4,077,027.46
  5. Step 5: Solve for x
    x = 4,077,027.46/2,206.28
  6. Step 6: Final answer
    x = 1,847.92

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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.