Home / 5,081.12-7,011.80-2,843.02

Finding the Fourth Proportional to 5,081.12, 7,011.80 and 2,843.02

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Solution

The fourth proportional to 5,081.12, 7,011.80 and 2,843.02 is: 3,923.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.12 : 7,011.80 = 2,843.02 : x
  2. Step 2: Convert to fraction form
    5,081.12/7,011.80 = 2,843.02/x
  3. Step 3: Cross multiply
    5,081.12x = 7,011.80 × 2,843.02
  4. Step 4: Simplify right side
    5,081.12x = 19,934,687.64
  5. Step 5: Solve for x
    x = 19,934,687.64/5,081.12
  6. Step 6: Final answer
    x = 3,923.29

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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.