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Finding the Fourth Proportional to 2,676.81, 4,017.05 and 945.44

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Solution

The fourth proportional to 2,676.81, 4,017.05 and 945.44 is: 1,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.81 : 4,017.05 = 945.44 : x
  2. Step 2: Convert to fraction form
    2,676.81/4,017.05 = 945.44/x
  3. Step 3: Cross multiply
    2,676.81x = 4,017.05 × 945.44
  4. Step 4: Simplify right side
    2,676.81x = 3,797,873.55
  5. Step 5: Solve for x
    x = 3,797,873.55/2,676.81
  6. Step 6: Final answer
    x = 1,418.80

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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.