Home / 3,213.54-4,821.80-1,365.09

Finding the Fourth Proportional to 3,213.54, 4,821.80 and 1,365.09

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Solution

The fourth proportional to 3,213.54, 4,821.80 and 1,365.09 is: 2,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.54 : 4,821.80 = 1,365.09 : x
  2. Step 2: Convert to fraction form
    3,213.54/4,821.80 = 1,365.09/x
  3. Step 3: Cross multiply
    3,213.54x = 4,821.80 × 1,365.09
  4. Step 4: Simplify right side
    3,213.54x = 6,582,190.96
  5. Step 5: Solve for x
    x = 6,582,190.96/3,213.54
  6. Step 6: Final answer
    x = 2,048.27

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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.