Home / 2,218.97-3,329.24-986.27

Finding the Fourth Proportional to 2,218.97, 3,329.24 and 986.27

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Solution

The fourth proportional to 2,218.97, 3,329.24 and 986.27 is: 1,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.97 : 3,329.24 = 986.27 : x
  2. Step 2: Convert to fraction form
    2,218.97/3,329.24 = 986.27/x
  3. Step 3: Cross multiply
    2,218.97x = 3,329.24 × 986.27
  4. Step 4: Simplify right side
    2,218.97x = 3,283,507.96
  5. Step 5: Solve for x
    x = 3,283,507.96/2,218.97
  6. Step 6: Final answer
    x = 1,479.75

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1.5x scale

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.