Home / 3,974.81-5,962.28-2,218.79

Finding the Fourth Proportional to 3,974.81, 5,962.28 and 2,218.79

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Solution

The fourth proportional to 3,974.81, 5,962.28 and 2,218.79 is: 3,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.81 : 5,962.28 = 2,218.79 : x
  2. Step 2: Convert to fraction form
    3,974.81/5,962.28 = 2,218.79/x
  3. Step 3: Cross multiply
    3,974.81x = 5,962.28 × 2,218.79
  4. Step 4: Simplify right side
    3,974.81x = 13,229,051.05
  5. Step 5: Solve for x
    x = 13,229,051.05/3,974.81
  6. Step 6: Final answer
    x = 3,328.23

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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.