Home / 2,768.20-4,152.81-793.75

Finding the Fourth Proportional to 2,768.20, 4,152.81 and 793.75

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Solution

The fourth proportional to 2,768.20, 4,152.81 and 793.75 is: 1,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.20 : 4,152.81 = 793.75 : x
  2. Step 2: Convert to fraction form
    2,768.20/4,152.81 = 793.75/x
  3. Step 3: Cross multiply
    2,768.20x = 4,152.81 × 793.75
  4. Step 4: Simplify right side
    2,768.20x = 3,296,292.94
  5. Step 5: Solve for x
    x = 3,296,292.94/2,768.20
  6. Step 6: Final answer
    x = 1,190.77

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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.