Home / 2,768.28-4,150.45-1,306

Finding the Fourth Proportional to 2,768.28, 4,150.45 and 1,306

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Solution

The fourth proportional to 2,768.28, 4,150.45 and 1,306 is: 1,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.28 : 4,150.45 = 1,306 : x
  2. Step 2: Convert to fraction form
    2,768.28/4,150.45 = 1,306/x
  3. Step 3: Cross multiply
    2,768.28x = 4,150.45 × 1,306
  4. Step 4: Simplify right side
    2,768.28x = 5,420,487.70
  5. Step 5: Solve for x
    x = 5,420,487.70/2,768.28
  6. Step 6: Final answer
    x = 1,958.07

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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.