Home / 2,119.23-3,174.80-1,143.99

Finding the Fourth Proportional to 2,119.23, 3,174.80 and 1,143.99

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Solution

The fourth proportional to 2,119.23, 3,174.80 and 1,143.99 is: 1,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.23 : 3,174.80 = 1,143.99 : x
  2. Step 2: Convert to fraction form
    2,119.23/3,174.80 = 1,143.99/x
  3. Step 3: Cross multiply
    2,119.23x = 3,174.80 × 1,143.99
  4. Step 4: Simplify right side
    2,119.23x = 3,631,933.73
  5. Step 5: Solve for x
    x = 3,631,933.73/2,119.23
  6. Step 6: Final answer
    x = 1,713.80

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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.