Home / 2,207.87-3,046.79-1,213.05

Finding the Fourth Proportional to 2,207.87, 3,046.79 and 1,213.05

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Solution

The fourth proportional to 2,207.87, 3,046.79 and 1,213.05 is: 1,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.87 : 3,046.79 = 1,213.05 : x
  2. Step 2: Convert to fraction form
    2,207.87/3,046.79 = 1,213.05/x
  3. Step 3: Cross multiply
    2,207.87x = 3,046.79 × 1,213.05
  4. Step 4: Simplify right side
    2,207.87x = 3,695,902.54
  5. Step 5: Solve for x
    x = 3,695,902.54/2,207.87
  6. Step 6: Final answer
    x = 1,673.97

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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.