Home / 2,744.28-3,791.82-2,159.40

Finding the Fourth Proportional to 2,744.28, 3,791.82 and 2,159.40

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Solution

The fourth proportional to 2,744.28, 3,791.82 and 2,159.40 is: 2,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,744.28 : 3,791.82 = 2,159.40 : x
  2. Step 2: Convert to fraction form
    2,744.28/3,791.82 = 2,159.40/x
  3. Step 3: Cross multiply
    2,744.28x = 3,791.82 × 2,159.40
  4. Step 4: Simplify right side
    2,744.28x = 8,188,056.11
  5. Step 5: Solve for x
    x = 8,188,056.11/2,744.28
  6. Step 6: Final answer
    x = 2,983.68

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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.