Home / 3,129.52-4,691.88-1,896.58

Finding the Fourth Proportional to 3,129.52, 4,691.88 and 1,896.58

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Solution

The fourth proportional to 3,129.52, 4,691.88 and 1,896.58 is: 2,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.52 : 4,691.88 = 1,896.58 : x
  2. Step 2: Convert to fraction form
    3,129.52/4,691.88 = 1,896.58/x
  3. Step 3: Cross multiply
    3,129.52x = 4,691.88 × 1,896.58
  4. Step 4: Simplify right side
    3,129.52x = 8,898,525.77
  5. Step 5: Solve for x
    x = 8,898,525.77/3,129.52
  6. Step 6: Final answer
    x = 2,843.42

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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.