Home / 3,948.53-5,449.01-2,179.89

Finding the Fourth Proportional to 3,948.53, 5,449.01 and 2,179.89

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Solution

The fourth proportional to 3,948.53, 5,449.01 and 2,179.89 is: 3,008.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.53 : 5,449.01 = 2,179.89 : x
  2. Step 2: Convert to fraction form
    3,948.53/5,449.01 = 2,179.89/x
  3. Step 3: Cross multiply
    3,948.53x = 5,449.01 × 2,179.89
  4. Step 4: Simplify right side
    3,948.53x = 11,878,231.51
  5. Step 5: Solve for x
    x = 11,878,231.51/3,948.53
  6. Step 6: Final answer
    x = 3,008.27

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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.