Home / 3,691.47-5,528.91-2,127.77

Finding the Fourth Proportional to 3,691.47, 5,528.91 and 2,127.77

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Solution

The fourth proportional to 3,691.47, 5,528.91 and 2,127.77 is: 3,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.47 : 5,528.91 = 2,127.77 : x
  2. Step 2: Convert to fraction form
    3,691.47/5,528.91 = 2,127.77/x
  3. Step 3: Cross multiply
    3,691.47x = 5,528.91 × 2,127.77
  4. Step 4: Simplify right side
    3,691.47x = 11,764,237.93
  5. Step 5: Solve for x
    x = 11,764,237.93/3,691.47
  6. Step 6: Final answer
    x = 3,186.87

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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.