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Finding the Fourth Proportional to 2,725.85, 4,088.82 and 673.85

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Solution

The fourth proportional to 2,725.85, 4,088.82 and 673.85 is: 1,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.85 : 4,088.82 = 673.85 : x
  2. Step 2: Convert to fraction form
    2,725.85/4,088.82 = 673.85/x
  3. Step 3: Cross multiply
    2,725.85x = 4,088.82 × 673.85
  4. Step 4: Simplify right side
    2,725.85x = 2,755,251.36
  5. Step 5: Solve for x
    x = 2,755,251.36/2,725.85
  6. Step 6: Final answer
    x = 1,010.79

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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.