Home / 3,948.30-5,919.45-2,001.90

Finding the Fourth Proportional to 3,948.30, 5,919.45 and 2,001.90

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Solution

The fourth proportional to 3,948.30, 5,919.45 and 2,001.90 is: 3,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.30 : 5,919.45 = 2,001.90 : x
  2. Step 2: Convert to fraction form
    3,948.30/5,919.45 = 2,001.90/x
  3. Step 3: Cross multiply
    3,948.30x = 5,919.45 × 2,001.90
  4. Step 4: Simplify right side
    3,948.30x = 11,850,146.96
  5. Step 5: Solve for x
    x = 11,850,146.96/3,948.30
  6. Step 6: Final answer
    x = 3,001.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.