Home / 2,180.31-3,270.48-1,025.79

Finding the Fourth Proportional to 2,180.31, 3,270.48 and 1,025.79

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Solution

The fourth proportional to 2,180.31, 3,270.48 and 1,025.79 is: 1,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.31 : 3,270.48 = 1,025.79 : x
  2. Step 2: Convert to fraction form
    2,180.31/3,270.48 = 1,025.79/x
  3. Step 3: Cross multiply
    2,180.31x = 3,270.48 × 1,025.79
  4. Step 4: Simplify right side
    2,180.31x = 3,354,825.68
  5. Step 5: Solve for x
    x = 3,354,825.68/2,180.31
  6. Step 6: Final answer
    x = 1,538.69

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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.