Home / 2,179.17-3,268.31-717.99

Finding the Fourth Proportional to 2,179.17, 3,268.31 and 717.99

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Solution

The fourth proportional to 2,179.17, 3,268.31 and 717.99 is: 1,076.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.17 : 3,268.31 = 717.99 : x
  2. Step 2: Convert to fraction form
    2,179.17/3,268.31 = 717.99/x
  3. Step 3: Cross multiply
    2,179.17x = 3,268.31 × 717.99
  4. Step 4: Simplify right side
    2,179.17x = 2,346,598.05
  5. Step 5: Solve for x
    x = 2,346,598.05/2,179.17
  6. Step 6: Final answer
    x = 1,076.83

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1.5x scale

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.