Home / 7,091.24-9,785.82-3,904

Finding the Fourth Proportional to 7,091.24, 9,785.82 and 3,904

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Solution

The fourth proportional to 7,091.24, 9,785.82 and 3,904 is: 5,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.24 : 9,785.82 = 3,904 : x
  2. Step 2: Convert to fraction form
    7,091.24/9,785.82 = 3,904/x
  3. Step 3: Cross multiply
    7,091.24x = 9,785.82 × 3,904
  4. Step 4: Simplify right side
    7,091.24x = 38,203,841.28
  5. Step 5: Solve for x
    x = 38,203,841.28/7,091.24
  6. Step 6: Final answer
    x = 5,387.47

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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.