Home / 2,163.17-3,247.77-1,109.72

Finding the Fourth Proportional to 2,163.17, 3,247.77 and 1,109.72

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Solution

The fourth proportional to 2,163.17, 3,247.77 and 1,109.72 is: 1,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.17 : 3,247.77 = 1,109.72 : x
  2. Step 2: Convert to fraction form
    2,163.17/3,247.77 = 1,109.72/x
  3. Step 3: Cross multiply
    2,163.17x = 3,247.77 × 1,109.72
  4. Step 4: Simplify right side
    2,163.17x = 3,604,099.09
  5. Step 5: Solve for x
    x = 3,604,099.09/2,163.17
  6. Step 6: Final answer
    x = 1,666.12

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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.