Home / 5,112.18-7,054.82-2,874.06

Finding the Fourth Proportional to 5,112.18, 7,054.82 and 2,874.06

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Solution

The fourth proportional to 5,112.18, 7,054.82 and 2,874.06 is: 3,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.18 : 7,054.82 = 2,874.06 : x
  2. Step 2: Convert to fraction form
    5,112.18/7,054.82 = 2,874.06/x
  3. Step 3: Cross multiply
    5,112.18x = 7,054.82 × 2,874.06
  4. Step 4: Simplify right side
    5,112.18x = 20,275,975.97
  5. Step 5: Solve for x
    x = 20,275,975.97/5,112.18
  6. Step 6: Final answer
    x = 3,966.21

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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.