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Finding the Fourth Proportional to 1,843.88, 2,766.27 and 919.88

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Solution

The fourth proportional to 1,843.88, 2,766.27 and 919.88 is: 1,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.88 : 2,766.27 = 919.88 : x
  2. Step 2: Convert to fraction form
    1,843.88/2,766.27 = 919.88/x
  3. Step 3: Cross multiply
    1,843.88x = 2,766.27 × 919.88
  4. Step 4: Simplify right side
    1,843.88x = 2,544,636.45
  5. Step 5: Solve for x
    x = 2,544,636.45/1,843.88
  6. Step 6: Final answer
    x = 1,380.04

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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.