Home / 4,748.20-7,122.49-1,786.34

Finding the Fourth Proportional to 4,748.20, 7,122.49 and 1,786.34

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Solution

The fourth proportional to 4,748.20, 7,122.49 and 1,786.34 is: 2,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.20 : 7,122.49 = 1,786.34 : x
  2. Step 2: Convert to fraction form
    4,748.20/7,122.49 = 1,786.34/x
  3. Step 3: Cross multiply
    4,748.20x = 7,122.49 × 1,786.34
  4. Step 4: Simplify right side
    4,748.20x = 12,723,202.13
  5. Step 5: Solve for x
    x = 12,723,202.13/4,748.20
  6. Step 6: Final answer
    x = 2,679.59

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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.