Home / 7,186.72-10,757.80-3,891.64

Finding the Fourth Proportional to 7,186.72, 10,757.80 and 3,891.64

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Solution

The fourth proportional to 7,186.72, 10,757.80 and 3,891.64 is: 5,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.72 : 10,757.80 = 3,891.64 : x
  2. Step 2: Convert to fraction form
    7,186.72/10,757.80 = 3,891.64/x
  3. Step 3: Cross multiply
    7,186.72x = 10,757.80 × 3,891.64
  4. Step 4: Simplify right side
    7,186.72x = 41,865,448.17
  5. Step 5: Solve for x
    x = 41,865,448.17/7,186.72
  6. Step 6: Final answer
    x = 5,825.39

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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.