Home / 5,704.12-7,871.62-3,186.47

Finding the Fourth Proportional to 5,704.12, 7,871.62 and 3,186.47

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Solution

The fourth proportional to 5,704.12, 7,871.62 and 3,186.47 is: 4,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.12 : 7,871.62 = 3,186.47 : x
  2. Step 2: Convert to fraction form
    5,704.12/7,871.62 = 3,186.47/x
  3. Step 3: Cross multiply
    5,704.12x = 7,871.62 × 3,186.47
  4. Step 4: Simplify right side
    5,704.12x = 25,082,680.98
  5. Step 5: Solve for x
    x = 25,082,680.98/5,704.12
  6. Step 6: Final answer
    x = 4,397.29

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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.