Home / 3,219.84-4,820.04-2,279.43

Finding the Fourth Proportional to 3,219.84, 4,820.04 and 2,279.43

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Solution

The fourth proportional to 3,219.84, 4,820.04 and 2,279.43 is: 3,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.84 : 4,820.04 = 2,279.43 : x
  2. Step 2: Convert to fraction form
    3,219.84/4,820.04 = 2,279.43/x
  3. Step 3: Cross multiply
    3,219.84x = 4,820.04 × 2,279.43
  4. Step 4: Simplify right side
    3,219.84x = 10,986,943.78
  5. Step 5: Solve for x
    x = 10,986,943.78/3,219.84
  6. Step 6: Final answer
    x = 3,412.26

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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.