Home / 2,202.79-3,039.92-1,208.11

Finding the Fourth Proportional to 2,202.79, 3,039.92 and 1,208.11

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Solution

The fourth proportional to 2,202.79, 3,039.92 and 1,208.11 is: 1,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.79 : 3,039.92 = 1,208.11 : x
  2. Step 2: Convert to fraction form
    2,202.79/3,039.92 = 1,208.11/x
  3. Step 3: Cross multiply
    2,202.79x = 3,039.92 × 1,208.11
  4. Step 4: Simplify right side
    2,202.79x = 3,672,565.35
  5. Step 5: Solve for x
    x = 3,672,565.35/2,202.79
  6. Step 6: Final answer
    x = 1,667.23

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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.