Home / 3,911.76-5,397.16-2,232.57

Finding the Fourth Proportional to 3,911.76, 5,397.16 and 2,232.57

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Solution

The fourth proportional to 3,911.76, 5,397.16 and 2,232.57 is: 3,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.76 : 5,397.16 = 2,232.57 : x
  2. Step 2: Convert to fraction form
    3,911.76/5,397.16 = 2,232.57/x
  3. Step 3: Cross multiply
    3,911.76x = 5,397.16 × 2,232.57
  4. Step 4: Simplify right side
    3,911.76x = 12,049,511.68
  5. Step 5: Solve for x
    x = 12,049,511.68/3,911.76
  6. Step 6: Final answer
    x = 3,080.33

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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.