Home / 4,222.20-6,333.30-2,839.80

Finding the Fourth Proportional to 4,222.20, 6,333.30 and 2,839.80

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Solution

The fourth proportional to 4,222.20, 6,333.30 and 2,839.80 is: 4,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.20 : 6,333.30 = 2,839.80 : x
  2. Step 2: Convert to fraction form
    4,222.20/6,333.30 = 2,839.80/x
  3. Step 3: Cross multiply
    4,222.20x = 6,333.30 × 2,839.80
  4. Step 4: Simplify right side
    4,222.20x = 17,985,305.34
  5. Step 5: Solve for x
    x = 17,985,305.34/4,222.20
  6. Step 6: Final answer
    x = 4,259.70

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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.