Home / 1,821.24-2,729.30-1,365.56

Finding the Fourth Proportional to 1,821.24, 2,729.30 and 1,365.56

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Solution

The fourth proportional to 1,821.24, 2,729.30 and 1,365.56 is: 2,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.24 : 2,729.30 = 1,365.56 : x
  2. Step 2: Convert to fraction form
    1,821.24/2,729.30 = 1,365.56/x
  3. Step 3: Cross multiply
    1,821.24x = 2,729.30 × 1,365.56
  4. Step 4: Simplify right side
    1,821.24x = 3,727,022.91
  5. Step 5: Solve for x
    x = 3,727,022.91/1,821.24
  6. Step 6: Final answer
    x = 2,046.42

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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.