Home / 2,168.96-2,993.36-1,212.04

Finding the Fourth Proportional to 2,168.96, 2,993.36 and 1,212.04

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Solution

The fourth proportional to 2,168.96, 2,993.36 and 1,212.04 is: 1,672.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.96 : 2,993.36 = 1,212.04 : x
  2. Step 2: Convert to fraction form
    2,168.96/2,993.36 = 1,212.04/x
  3. Step 3: Cross multiply
    2,168.96x = 2,993.36 × 1,212.04
  4. Step 4: Simplify right side
    2,168.96x = 3,628,072.05
  5. Step 5: Solve for x
    x = 3,628,072.05/2,168.96
  6. Step 6: Final answer
    x = 1,672.72

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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.