Home / 2,202.89-3,039.99-1,208.21

Finding the Fourth Proportional to 2,202.89, 3,039.99 and 1,208.21

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Solution

The fourth proportional to 2,202.89, 3,039.99 and 1,208.21 is: 1,667.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.89 : 3,039.99 = 1,208.21 : x
  2. Step 2: Convert to fraction form
    2,202.89/3,039.99 = 1,208.21/x
  3. Step 3: Cross multiply
    2,202.89x = 3,039.99 × 1,208.21
  4. Step 4: Simplify right side
    2,202.89x = 3,672,946.32
  5. Step 5: Solve for x
    x = 3,672,946.32/2,202.89
  6. Step 6: Final answer
    x = 1,667.33

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1.5x scale

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.