Home / 2,665.66-3,998.58-1,366.12

Finding the Fourth Proportional to 2,665.66, 3,998.58 and 1,366.12

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Solution

The fourth proportional to 2,665.66, 3,998.58 and 1,366.12 is: 2,049.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.66 : 3,998.58 = 1,366.12 : x
  2. Step 2: Convert to fraction form
    2,665.66/3,998.58 = 1,366.12/x
  3. Step 3: Cross multiply
    2,665.66x = 3,998.58 × 1,366.12
  4. Step 4: Simplify right side
    2,665.66x = 5,462,540.11
  5. Step 5: Solve for x
    x = 5,462,540.11/2,665.66
  6. Step 6: Final answer
    x = 2,049.23

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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.