Home / 2,979.87-4,112.97-2,036.04

Finding the Fourth Proportional to 2,979.87, 4,112.97 and 2,036.04

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Solution

The fourth proportional to 2,979.87, 4,112.97 and 2,036.04 is: 2,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.87 : 4,112.97 = 2,036.04 : x
  2. Step 2: Convert to fraction form
    2,979.87/4,112.97 = 2,036.04/x
  3. Step 3: Cross multiply
    2,979.87x = 4,112.97 × 2,036.04
  4. Step 4: Simplify right side
    2,979.87x = 8,374,161.16
  5. Step 5: Solve for x
    x = 8,374,161.16/2,979.87
  6. Step 6: Final answer
    x = 2,810.25

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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.