Home / 2,991.26-4,487.79-1,142.42

Finding the Fourth Proportional to 2,991.26, 4,487.79 and 1,142.42

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Solution

The fourth proportional to 2,991.26, 4,487.79 and 1,142.42 is: 1,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.26 : 4,487.79 = 1,142.42 : x
  2. Step 2: Convert to fraction form
    2,991.26/4,487.79 = 1,142.42/x
  3. Step 3: Cross multiply
    2,991.26x = 4,487.79 × 1,142.42
  4. Step 4: Simplify right side
    2,991.26x = 5,126,941.05
  5. Step 5: Solve for x
    x = 5,126,941.05/2,991.26
  6. Step 6: Final answer
    x = 1,713.97

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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.