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Finding the Fourth Proportional to 1,676.41, 2,512.98 and 798.68

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Solution

The fourth proportional to 1,676.41, 2,512.98 and 798.68 is: 1,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.41 : 2,512.98 = 798.68 : x
  2. Step 2: Convert to fraction form
    1,676.41/2,512.98 = 798.68/x
  3. Step 3: Cross multiply
    1,676.41x = 2,512.98 × 798.68
  4. Step 4: Simplify right side
    1,676.41x = 2,007,054.30
  5. Step 5: Solve for x
    x = 2,007,054.30/1,676.41
  6. Step 6: Final answer
    x = 1,197.24

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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.