Home / 3,218.82-4,441.44-1,821.30

Finding the Fourth Proportional to 3,218.82, 4,441.44 and 1,821.30

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Solution

The fourth proportional to 3,218.82, 4,441.44 and 1,821.30 is: 2,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.82 : 4,441.44 = 1,821.30 : x
  2. Step 2: Convert to fraction form
    3,218.82/4,441.44 = 1,821.30/x
  3. Step 3: Cross multiply
    3,218.82x = 4,441.44 × 1,821.30
  4. Step 4: Simplify right side
    3,218.82x = 8,089,194.67
  5. Step 5: Solve for x
    x = 8,089,194.67/3,218.82
  6. Step 6: Final answer
    x = 2,513.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.