Home / 4,912.71-7,369.06-1,991.04

Finding the Fourth Proportional to 4,912.71, 7,369.06 and 1,991.04

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Solution

The fourth proportional to 4,912.71, 7,369.06 and 1,991.04 is: 2,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.71 : 7,369.06 = 1,991.04 : x
  2. Step 2: Convert to fraction form
    4,912.71/7,369.06 = 1,991.04/x
  3. Step 3: Cross multiply
    4,912.71x = 7,369.06 × 1,991.04
  4. Step 4: Simplify right side
    4,912.71x = 14,672,093.22
  5. Step 5: Solve for x
    x = 14,672,093.22/4,912.71
  6. Step 6: Final answer
    x = 2,986.56

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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.