Home / 2,748.39-4,122.99-800.34

Finding the Fourth Proportional to 2,748.39, 4,122.99 and 800.34

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Solution

The fourth proportional to 2,748.39, 4,122.99 and 800.34 is: 1,200.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.39 : 4,122.99 = 800.34 : x
  2. Step 2: Convert to fraction form
    2,748.39/4,122.99 = 800.34/x
  3. Step 3: Cross multiply
    2,748.39x = 4,122.99 × 800.34
  4. Step 4: Simplify right side
    2,748.39x = 3,299,793.82
  5. Step 5: Solve for x
    x = 3,299,793.82/2,748.39
  6. Step 6: Final answer
    x = 1,200.63

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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.