Home / 3,729.16-5,146.44-2,135.88

Finding the Fourth Proportional to 3,729.16, 5,146.44 and 2,135.88

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Solution

The fourth proportional to 3,729.16, 5,146.44 and 2,135.88 is: 2,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.16 : 5,146.44 = 2,135.88 : x
  2. Step 2: Convert to fraction form
    3,729.16/5,146.44 = 2,135.88/x
  3. Step 3: Cross multiply
    3,729.16x = 5,146.44 × 2,135.88
  4. Step 4: Simplify right side
    3,729.16x = 10,992,178.27
  5. Step 5: Solve for x
    x = 10,992,178.27/3,729.16
  6. Step 6: Final answer
    x = 2,947.63

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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.