Home / 3,103.56-4,654.80-1,155.36

Finding the Fourth Proportional to 3,103.56, 4,654.80 and 1,155.36

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Solution

The fourth proportional to 3,103.56, 4,654.80 and 1,155.36 is: 1,732.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.56 : 4,654.80 = 1,155.36 : x
  2. Step 2: Convert to fraction form
    3,103.56/4,654.80 = 1,155.36/x
  3. Step 3: Cross multiply
    3,103.56x = 4,654.80 × 1,155.36
  4. Step 4: Simplify right side
    3,103.56x = 5,377,969.73
  5. Step 5: Solve for x
    x = 5,377,969.73/3,103.56
  6. Step 6: Final answer
    x = 1,732.84

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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.