Home / 2,179.96-3,270.48-1,790.62

Finding the Fourth Proportional to 2,179.96, 3,270.48 and 1,790.62

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Solution

The fourth proportional to 2,179.96, 3,270.48 and 1,790.62 is: 2,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.96 : 3,270.48 = 1,790.62 : x
  2. Step 2: Convert to fraction form
    2,179.96/3,270.48 = 1,790.62/x
  3. Step 3: Cross multiply
    2,179.96x = 3,270.48 × 1,790.62
  4. Step 4: Simplify right side
    2,179.96x = 5,856,186.90
  5. Step 5: Solve for x
    x = 5,856,186.90/2,179.96
  6. Step 6: Final answer
    x = 2,686.37

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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.