Home / 3,193.20-4,789.80-2,545.20

Finding the Fourth Proportional to 3,193.20, 4,789.80 and 2,545.20

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Solution

The fourth proportional to 3,193.20, 4,789.80 and 2,545.20 is: 3,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.20 : 4,789.80 = 2,545.20 : x
  2. Step 2: Convert to fraction form
    3,193.20/4,789.80 = 2,545.20/x
  3. Step 3: Cross multiply
    3,193.20x = 4,789.80 × 2,545.20
  4. Step 4: Simplify right side
    3,193.20x = 12,190,998.96
  5. Step 5: Solve for x
    x = 12,190,998.96/3,193.20
  6. Step 6: Final answer
    x = 3,817.80

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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.