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Finding the Fourth Proportional to 1,845.54, 2,766.47 and 674.55

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Solution

The fourth proportional to 1,845.54, 2,766.47 and 674.55 is: 1,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.54 : 2,766.47 = 674.55 : x
  2. Step 2: Convert to fraction form
    1,845.54/2,766.47 = 674.55/x
  3. Step 3: Cross multiply
    1,845.54x = 2,766.47 × 674.55
  4. Step 4: Simplify right side
    1,845.54x = 1,866,118.97
  5. Step 5: Solve for x
    x = 1,866,118.97/1,845.54
  6. Step 6: Final answer
    x = 1,011.15

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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.