Home / 3,948.33-5,448.63-2,179.89

Finding the Fourth Proportional to 3,948.33, 5,448.63 and 2,179.89

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Solution

The fourth proportional to 3,948.33, 5,448.63 and 2,179.89 is: 3,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.33 : 5,448.63 = 2,179.89 : x
  2. Step 2: Convert to fraction form
    3,948.33/5,448.63 = 2,179.89/x
  3. Step 3: Cross multiply
    3,948.33x = 5,448.63 × 2,179.89
  4. Step 4: Simplify right side
    3,948.33x = 11,877,414.05
  5. Step 5: Solve for x
    x = 11,877,414.05/3,948.33
  6. Step 6: Final answer
    x = 3,008.21

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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.