Home / 3,101.95-4,650.49-2,125.09

Finding the Fourth Proportional to 3,101.95, 4,650.49 and 2,125.09

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Solution

The fourth proportional to 3,101.95, 4,650.49 and 2,125.09 is: 3,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.95 : 4,650.49 = 2,125.09 : x
  2. Step 2: Convert to fraction form
    3,101.95/4,650.49 = 2,125.09/x
  3. Step 3: Cross multiply
    3,101.95x = 4,650.49 × 2,125.09
  4. Step 4: Simplify right side
    3,101.95x = 9,882,709.79
  5. Step 5: Solve for x
    x = 9,882,709.79/3,101.95
  6. Step 6: Final answer
    x = 3,185.97

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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.