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Finding the Fourth Proportional to 2,762.92, 4,144.56 and 1,119.43

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Solution

The fourth proportional to 2,762.92, 4,144.56 and 1,119.43 is: 1,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.92 : 4,144.56 = 1,119.43 : x
  2. Step 2: Convert to fraction form
    2,762.92/4,144.56 = 1,119.43/x
  3. Step 3: Cross multiply
    2,762.92x = 4,144.56 × 1,119.43
  4. Step 4: Simplify right side
    2,762.92x = 4,639,544.80
  5. Step 5: Solve for x
    x = 4,639,544.80/2,762.92
  6. Step 6: Final answer
    x = 1,679.22

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1.5x scale

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.