Home / 2,748.42-4,122.79-800.69

Finding the Fourth Proportional to 2,748.42, 4,122.79 and 800.69

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Solution

The fourth proportional to 2,748.42, 4,122.79 and 800.69 is: 1,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.42 : 4,122.79 = 800.69 : x
  2. Step 2: Convert to fraction form
    2,748.42/4,122.79 = 800.69/x
  3. Step 3: Cross multiply
    2,748.42x = 4,122.79 × 800.69
  4. Step 4: Simplify right side
    2,748.42x = 3,301,054.11
  5. Step 5: Solve for x
    x = 3,301,054.11/2,748.42
  6. Step 6: Final answer
    x = 1,201.07

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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.