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Finding the Fourth Proportional to 2,991.96, 4,131.96 and 2,244.74

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Solution

The fourth proportional to 2,991.96, 4,131.96 and 2,244.74 is: 3,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.96 : 4,131.96 = 2,244.74 : x
  2. Step 2: Convert to fraction form
    2,991.96/4,131.96 = 2,244.74/x
  3. Step 3: Cross multiply
    2,991.96x = 4,131.96 × 2,244.74
  4. Step 4: Simplify right side
    2,991.96x = 9,275,155.23
  5. Step 5: Solve for x
    x = 9,275,155.23/2,991.96
  6. Step 6: Final answer
    x = 3,100.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.