Home / 2,748.94-4,122.90-800.68

Finding the Fourth Proportional to 2,748.94, 4,122.90 and 800.68

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Solution

The fourth proportional to 2,748.94, 4,122.90 and 800.68 is: 1,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.94 : 4,122.90 = 800.68 : x
  2. Step 2: Convert to fraction form
    2,748.94/4,122.90 = 800.68/x
  3. Step 3: Cross multiply
    2,748.94x = 4,122.90 × 800.68
  4. Step 4: Simplify right side
    2,748.94x = 3,301,123.57
  5. Step 5: Solve for x
    x = 3,301,123.57/2,748.94
  6. Step 6: Final answer
    x = 1,200.87

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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.