Home / 2,163.66-2,985.69-1,324.61

Finding the Fourth Proportional to 2,163.66, 2,985.69 and 1,324.61

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Solution

The fourth proportional to 2,163.66, 2,985.69 and 1,324.61 is: 1,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.66 : 2,985.69 = 1,324.61 : x
  2. Step 2: Convert to fraction form
    2,163.66/2,985.69 = 1,324.61/x
  3. Step 3: Cross multiply
    2,163.66x = 2,985.69 × 1,324.61
  4. Step 4: Simplify right side
    2,163.66x = 3,954,859.90
  5. Step 5: Solve for x
    x = 3,954,859.90/2,163.66
  6. Step 6: Final answer
    x = 1,827.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.