Home / 2,945.50-4,414.12-2,119.90

Finding the Fourth Proportional to 2,945.50, 4,414.12 and 2,119.90

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Solution

The fourth proportional to 2,945.50, 4,414.12 and 2,119.90 is: 3,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.50 : 4,414.12 = 2,119.90 : x
  2. Step 2: Convert to fraction form
    2,945.50/4,414.12 = 2,119.90/x
  3. Step 3: Cross multiply
    2,945.50x = 4,414.12 × 2,119.90
  4. Step 4: Simplify right side
    2,945.50x = 9,357,492.99
  5. Step 5: Solve for x
    x = 9,357,492.99/2,945.50
  6. Step 6: Final answer
    x = 3,176.88

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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.