Home / 5,195.80-7,789.02-1,906.60

Finding the Fourth Proportional to 5,195.80, 7,789.02 and 1,906.60

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Solution

The fourth proportional to 5,195.80, 7,789.02 and 1,906.60 is: 2,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.80 : 7,789.02 = 1,906.60 : x
  2. Step 2: Convert to fraction form
    5,195.80/7,789.02 = 1,906.60/x
  3. Step 3: Cross multiply
    5,195.80x = 7,789.02 × 1,906.60
  4. Step 4: Simplify right side
    5,195.80x = 14,850,545.53
  5. Step 5: Solve for x
    x = 14,850,545.53/5,195.80
  6. Step 6: Final answer
    x = 2,858.18

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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.