Home / 3,267.20-4,892.70-2,619.20

Finding the Fourth Proportional to 3,267.20, 4,892.70 and 2,619.20

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Solution

The fourth proportional to 3,267.20, 4,892.70 and 2,619.20 is: 3,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267.20 : 4,892.70 = 2,619.20 : x
  2. Step 2: Convert to fraction form
    3,267.20/4,892.70 = 2,619.20/x
  3. Step 3: Cross multiply
    3,267.20x = 4,892.70 × 2,619.20
  4. Step 4: Simplify right side
    3,267.20x = 12,814,959.84
  5. Step 5: Solve for x
    x = 12,814,959.84/3,267.20
  6. Step 6: Final answer
    x = 3,922.31

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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.