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Finding the Fourth Proportional to 4,763.64, 7,142.94 and 1,839

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Solution

The fourth proportional to 4,763.64, 7,142.94 and 1,839 is: 2,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,763.64 : 7,142.94 = 1,839 : x
  2. Step 2: Convert to fraction form
    4,763.64/7,142.94 = 1,839/x
  3. Step 3: Cross multiply
    4,763.64x = 7,142.94 × 1,839
  4. Step 4: Simplify right side
    4,763.64x = 13,135,866.66
  5. Step 5: Solve for x
    x = 13,135,866.66/4,763.64
  6. Step 6: Final answer
    x = 2,757.53

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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.