Home / 4,789.92-7,181.80-1,868.52

Finding the Fourth Proportional to 4,789.92, 7,181.80 and 1,868.52

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Solution

The fourth proportional to 4,789.92, 7,181.80 and 1,868.52 is: 2,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.92 : 7,181.80 = 1,868.52 : x
  2. Step 2: Convert to fraction form
    4,789.92/7,181.80 = 1,868.52/x
  3. Step 3: Cross multiply
    4,789.92x = 7,181.80 × 1,868.52
  4. Step 4: Simplify right side
    4,789.92x = 13,419,336.94
  5. Step 5: Solve for x
    x = 13,419,336.94/4,789.92
  6. Step 6: Final answer
    x = 2,801.58

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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.