Home / 2,961.88-4,438.50-2,021.56

Finding the Fourth Proportional to 2,961.88, 4,438.50 and 2,021.56

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Solution

The fourth proportional to 2,961.88, 4,438.50 and 2,021.56 is: 3,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.88 : 4,438.50 = 2,021.56 : x
  2. Step 2: Convert to fraction form
    2,961.88/4,438.50 = 2,021.56/x
  3. Step 3: Cross multiply
    2,961.88x = 4,438.50 × 2,021.56
  4. Step 4: Simplify right side
    2,961.88x = 8,972,694.06
  5. Step 5: Solve for x
    x = 8,972,694.06/2,961.88
  6. Step 6: Final answer
    x = 3,029.39

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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.