Home / 2,202.84-3,039.92-1,208.21

Finding the Fourth Proportional to 2,202.84, 3,039.92 and 1,208.21

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Solution

The fourth proportional to 2,202.84, 3,039.92 and 1,208.21 is: 1,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.84 : 3,039.92 = 1,208.21 : x
  2. Step 2: Convert to fraction form
    2,202.84/3,039.92 = 1,208.21/x
  3. Step 3: Cross multiply
    2,202.84x = 3,039.92 × 1,208.21
  4. Step 4: Simplify right side
    2,202.84x = 3,672,872.36
  5. Step 5: Solve for x
    x = 3,672,872.36/2,202.84
  6. Step 6: Final answer
    x = 1,667.34

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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.