Home / 3,981.88-5,973.57-1,902.05

Finding the Fourth Proportional to 3,981.88, 5,973.57 and 1,902.05

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Solution

The fourth proportional to 3,981.88, 5,973.57 and 1,902.05 is: 2,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.88 : 5,973.57 = 1,902.05 : x
  2. Step 2: Convert to fraction form
    3,981.88/5,973.57 = 1,902.05/x
  3. Step 3: Cross multiply
    3,981.88x = 5,973.57 × 1,902.05
  4. Step 4: Simplify right side
    3,981.88x = 11,361,998.95
  5. Step 5: Solve for x
    x = 11,361,998.95/3,981.88
  6. Step 6: Final answer
    x = 2,853.43

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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.