Home / 4,086.63-5,641.88-2,691.81

Finding the Fourth Proportional to 4,086.63, 5,641.88 and 2,691.81

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Solution

The fourth proportional to 4,086.63, 5,641.88 and 2,691.81 is: 3,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.63 : 5,641.88 = 2,691.81 : x
  2. Step 2: Convert to fraction form
    4,086.63/5,641.88 = 2,691.81/x
  3. Step 3: Cross multiply
    4,086.63x = 5,641.88 × 2,691.81
  4. Step 4: Simplify right side
    4,086.63x = 15,186,855.54
  5. Step 5: Solve for x
    x = 15,186,855.54/4,086.63
  6. Step 6: Final answer
    x = 3,716.23

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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.