Home / 3,685.81-5,086.36-2,029.81

Finding the Fourth Proportional to 3,685.81, 5,086.36 and 2,029.81

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Solution

The fourth proportional to 3,685.81, 5,086.36 and 2,029.81 is: 2,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.81 : 5,086.36 = 2,029.81 : x
  2. Step 2: Convert to fraction form
    3,685.81/5,086.36 = 2,029.81/x
  3. Step 3: Cross multiply
    3,685.81x = 5,086.36 × 2,029.81
  4. Step 4: Simplify right side
    3,685.81x = 10,324,344.39
  5. Step 5: Solve for x
    x = 10,324,344.39/3,685.81
  6. Step 6: Final answer
    x = 2,801.11

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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.