Home / 7,251.40-10,857.66-3,781.36

Finding the Fourth Proportional to 7,251.40, 10,857.66 and 3,781.36

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Solution

The fourth proportional to 7,251.40, 10,857.66 and 3,781.36 is: 5,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.40 : 10,857.66 = 3,781.36 : x
  2. Step 2: Convert to fraction form
    7,251.40/10,857.66 = 3,781.36/x
  3. Step 3: Cross multiply
    7,251.40x = 10,857.66 × 3,781.36
  4. Step 4: Simplify right side
    7,251.40x = 41,056,721.22
  5. Step 5: Solve for x
    x = 41,056,721.22/7,251.40
  6. Step 6: Final answer
    x = 5,661.90

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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.