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Finding the Fourth Proportional to 5,323.94, 7,986.01 and 1,861.19

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Solution

The fourth proportional to 5,323.94, 7,986.01 and 1,861.19 is: 2,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.94 : 7,986.01 = 1,861.19 : x
  2. Step 2: Convert to fraction form
    5,323.94/7,986.01 = 1,861.19/x
  3. Step 3: Cross multiply
    5,323.94x = 7,986.01 × 1,861.19
  4. Step 4: Simplify right side
    5,323.94x = 14,863,481.95
  5. Step 5: Solve for x
    x = 14,863,481.95/5,323.94
  6. Step 6: Final answer
    x = 2,791.82

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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.