Home / 3,972.84-5,954.73-1,889.90

Finding the Fourth Proportional to 3,972.84, 5,954.73 and 1,889.90

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Solution

The fourth proportional to 3,972.84, 5,954.73 and 1,889.90 is: 2,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.84 : 5,954.73 = 1,889.90 : x
  2. Step 2: Convert to fraction form
    3,972.84/5,954.73 = 1,889.90/x
  3. Step 3: Cross multiply
    3,972.84x = 5,954.73 × 1,889.90
  4. Step 4: Simplify right side
    3,972.84x = 11,253,814.45
  5. Step 5: Solve for x
    x = 11,253,814.45/3,972.84
  6. Step 6: Final answer
    x = 2,832.69

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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.