Home / 3,904.67-5,849.13-1,821.80

Finding the Fourth Proportional to 3,904.67, 5,849.13 and 1,821.80

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Solution

The fourth proportional to 3,904.67, 5,849.13 and 1,821.80 is: 2,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.67 : 5,849.13 = 1,821.80 : x
  2. Step 2: Convert to fraction form
    3,904.67/5,849.13 = 1,821.80/x
  3. Step 3: Cross multiply
    3,904.67x = 5,849.13 × 1,821.80
  4. Step 4: Simplify right side
    3,904.67x = 10,655,945.03
  5. Step 5: Solve for x
    x = 10,655,945.03/3,904.67
  6. Step 6: Final answer
    x = 2,729.03

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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.