Home / 3,806.37-5,251.61-2,127.56

Finding the Fourth Proportional to 3,806.37, 5,251.61 and 2,127.56

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Solution

The fourth proportional to 3,806.37, 5,251.61 and 2,127.56 is: 2,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.37 : 5,251.61 = 2,127.56 : x
  2. Step 2: Convert to fraction form
    3,806.37/5,251.61 = 2,127.56/x
  3. Step 3: Cross multiply
    3,806.37x = 5,251.61 × 2,127.56
  4. Step 4: Simplify right side
    3,806.37x = 11,173,078.48
  5. Step 5: Solve for x
    x = 11,173,078.48/3,806.37
  6. Step 6: Final answer
    x = 2,935.36

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1.5x scale

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.