Home / 3,979,759.20-5,492,046.96-2,168,907.36

Finding the Fourth Proportional to 3,979,759.20, 5,492,046.96 and 2,168,907.36

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Solution

The fourth proportional to 3,979,759.20, 5,492,046.96 and 2,168,907.36 is: 2,993,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,759.20 : 5,492,046.96 = 2,168,907.36 : x
  2. Step 2: Convert to fraction form
    3,979,759.20/5,492,046.96 = 2,168,907.36/x
  3. Step 3: Cross multiply
    3,979,759.20x = 5,492,046.96 × 2,168,907.36
  4. Step 4: Simplify right side
    3,979,759.20x = 11,911,741,073,009.62
  5. Step 5: Solve for x
    x = 11,911,741,073,009.62/3,979,759.20
  6. Step 6: Final answer
    x = 2,993,080.86

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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.