Home / 2,207.15-3,045.94-1,212.50

Finding the Fourth Proportional to 2,207.15, 3,045.94 and 1,212.50

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Solution

The fourth proportional to 2,207.15, 3,045.94 and 1,212.50 is: 1,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.15 : 3,045.94 = 1,212.50 : x
  2. Step 2: Convert to fraction form
    2,207.15/3,045.94 = 1,212.50/x
  3. Step 3: Cross multiply
    2,207.15x = 3,045.94 × 1,212.50
  4. Step 4: Simplify right side
    2,207.15x = 3,693,202.25
  5. Step 5: Solve for x
    x = 3,693,202.25/2,207.15
  6. Step 6: Final answer
    x = 1,673.29

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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.