Home / 3,103.92-4,654.40-1,805.76

Finding the Fourth Proportional to 3,103.92, 4,654.40 and 1,805.76

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Solution

The fourth proportional to 3,103.92, 4,654.40 and 1,805.76 is: 2,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.92 : 4,654.40 = 1,805.76 : x
  2. Step 2: Convert to fraction form
    3,103.92/4,654.40 = 1,805.76/x
  3. Step 3: Cross multiply
    3,103.92x = 4,654.40 × 1,805.76
  4. Step 4: Simplify right side
    3,103.92x = 8,404,729.34
  5. Step 5: Solve for x
    x = 8,404,729.34/3,103.92
  6. Step 6: Final answer
    x = 2,707.78

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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.