Home / 2,785.96-3,841.32-1,791.28

Finding the Fourth Proportional to 2,785.96, 3,841.32 and 1,791.28

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Solution

The fourth proportional to 2,785.96, 3,841.32 and 1,791.28 is: 2,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.96 : 3,841.32 = 1,791.28 : x
  2. Step 2: Convert to fraction form
    2,785.96/3,841.32 = 1,791.28/x
  3. Step 3: Cross multiply
    2,785.96x = 3,841.32 × 1,791.28
  4. Step 4: Simplify right side
    2,785.96x = 6,880,879.69
  5. Step 5: Solve for x
    x = 6,880,879.69/2,785.96
  6. Step 6: Final answer
    x = 2,469.84

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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.