Home / 2,748.32-4,121.76-800.48

Finding the Fourth Proportional to 2,748.32, 4,121.76 and 800.48

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Solution

The fourth proportional to 2,748.32, 4,121.76 and 800.48 is: 1,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.32 : 4,121.76 = 800.48 : x
  2. Step 2: Convert to fraction form
    2,748.32/4,121.76 = 800.48/x
  3. Step 3: Cross multiply
    2,748.32x = 4,121.76 × 800.48
  4. Step 4: Simplify right side
    2,748.32x = 3,299,386.44
  5. Step 5: Solve for x
    x = 3,299,386.44/2,748.32
  6. Step 6: Final answer
    x = 1,200.51

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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.