Home / 3,918.66-5,863.14-2,418.02

Finding the Fourth Proportional to 3,918.66, 5,863.14 and 2,418.02

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Solution

The fourth proportional to 3,918.66, 5,863.14 and 2,418.02 is: 3,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.66 : 5,863.14 = 2,418.02 : x
  2. Step 2: Convert to fraction form
    3,918.66/5,863.14 = 2,418.02/x
  3. Step 3: Cross multiply
    3,918.66x = 5,863.14 × 2,418.02
  4. Step 4: Simplify right side
    3,918.66x = 14,177,189.78
  5. Step 5: Solve for x
    x = 14,177,189.78/3,918.66
  6. Step 6: Final answer
    x = 3,617.87

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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.