Home / 3,205.80-4,424.00-1,808.55

Finding the Fourth Proportional to 3,205.80, 4,424.00 and 1,808.55

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Solution

The fourth proportional to 3,205.80, 4,424.00 and 1,808.55 is: 2,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.80 : 4,424.00 = 1,808.55 : x
  2. Step 2: Convert to fraction form
    3,205.80/4,424.00 = 1,808.55/x
  3. Step 3: Cross multiply
    3,205.80x = 4,424.00 × 1,808.55
  4. Step 4: Simplify right side
    3,205.80x = 8,001,016.16
  5. Step 5: Solve for x
    x = 8,001,016.16/3,205.80
  6. Step 6: Final answer
    x = 2,495.79

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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.