Home / 5,192.46-7,791.80-1,905.88

Finding the Fourth Proportional to 5,192.46, 7,791.80 and 1,905.88

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Solution

The fourth proportional to 5,192.46, 7,791.80 and 1,905.88 is: 2,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.46 : 7,791.80 = 1,905.88 : x
  2. Step 2: Convert to fraction form
    5,192.46/7,791.80 = 1,905.88/x
  3. Step 3: Cross multiply
    5,192.46x = 7,791.80 × 1,905.88
  4. Step 4: Simplify right side
    5,192.46x = 14,850,235.78
  5. Step 5: Solve for x
    x = 14,850,235.78/5,192.46
  6. Step 6: Final answer
    x = 2,859.96

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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.