Home / 2,207.69-3,046.55-1,212.97

Finding the Fourth Proportional to 2,207.69, 3,046.55 and 1,212.97

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Solution

The fourth proportional to 2,207.69, 3,046.55 and 1,212.97 is: 1,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.69 : 3,046.55 = 1,212.97 : x
  2. Step 2: Convert to fraction form
    2,207.69/3,046.55 = 1,212.97/x
  3. Step 3: Cross multiply
    2,207.69x = 3,046.55 × 1,212.97
  4. Step 4: Simplify right side
    2,207.69x = 3,695,368.76
  5. Step 5: Solve for x
    x = 3,695,368.76/2,207.69
  6. Step 6: Final answer
    x = 1,673.86

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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.