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Finding the Fourth Proportional to 1,650.09, 2,473.92 and 676.20

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Solution

The fourth proportional to 1,650.09, 2,473.92 and 676.20 is: 1,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.09 : 2,473.92 = 676.20 : x
  2. Step 2: Convert to fraction form
    1,650.09/2,473.92 = 676.20/x
  3. Step 3: Cross multiply
    1,650.09x = 2,473.92 × 676.20
  4. Step 4: Simplify right side
    1,650.09x = 1,672,864.70
  5. Step 5: Solve for x
    x = 1,672,864.70/1,650.09
  6. Step 6: Final answer
    x = 1,013.80

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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.