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Finding the Fourth Proportional to 2,202.71, 3,039.71 and 1,208.00

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Solution

The fourth proportional to 2,202.71, 3,039.71 and 1,208.00 is: 1,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.71 : 3,039.71 = 1,208.00 : x
  2. Step 2: Convert to fraction form
    2,202.71/3,039.71 = 1,208.00/x
  3. Step 3: Cross multiply
    2,202.71x = 3,039.71 × 1,208.00
  4. Step 4: Simplify right side
    2,202.71x = 3,671,948.44
  5. Step 5: Solve for x
    x = 3,671,948.44/2,202.71
  6. Step 6: Final answer
    x = 1,667.02

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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.