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Finding the Fourth Proportional to 4,781.03, 7,171.61 and 1,819.51

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Solution

The fourth proportional to 4,781.03, 7,171.61 and 1,819.51 is: 2,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.03 : 7,171.61 = 1,819.51 : x
  2. Step 2: Convert to fraction form
    4,781.03/7,171.61 = 1,819.51/x
  3. Step 3: Cross multiply
    4,781.03x = 7,171.61 × 1,819.51
  4. Step 4: Simplify right side
    4,781.03x = 13,048,789.08
  5. Step 5: Solve for x
    x = 13,048,789.08/4,781.03
  6. Step 6: Final answer
    x = 2,729.29

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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.