Home / 2,092.12-3,139.80-1,119.04

Finding the Fourth Proportional to 2,092.12, 3,139.80 and 1,119.04

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Solution

The fourth proportional to 2,092.12, 3,139.80 and 1,119.04 is: 1,679.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.12 : 3,139.80 = 1,119.04 : x
  2. Step 2: Convert to fraction form
    2,092.12/3,139.80 = 1,119.04/x
  3. Step 3: Cross multiply
    2,092.12x = 3,139.80 × 1,119.04
  4. Step 4: Simplify right side
    2,092.12x = 3,513,561.79
  5. Step 5: Solve for x
    x = 3,513,561.79/2,092.12
  6. Step 6: Final answer
    x = 1,679.43

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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.