Home / 3,128.58-4,691.04-1,179.96

Finding the Fourth Proportional to 3,128.58, 4,691.04 and 1,179.96

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Solution

The fourth proportional to 3,128.58, 4,691.04 and 1,179.96 is: 1,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.58 : 4,691.04 = 1,179.96 : x
  2. Step 2: Convert to fraction form
    3,128.58/4,691.04 = 1,179.96/x
  3. Step 3: Cross multiply
    3,128.58x = 4,691.04 × 1,179.96
  4. Step 4: Simplify right side
    3,128.58x = 5,535,239.56
  5. Step 5: Solve for x
    x = 5,535,239.56/3,128.58
  6. Step 6: Final answer
    x = 1,769.25

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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.