Home / 2,629,340.64-3,933,633.78-1,991,481.84

Finding the Fourth Proportional to 2,629,340.64, 3,933,633.78 and 1,991,481.84

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Solution

The fourth proportional to 2,629,340.64, 3,933,633.78 and 1,991,481.84 is: 2,979,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,340.64 : 3,933,633.78 = 1,991,481.84 : x
  2. Step 2: Convert to fraction form
    2,629,340.64/3,933,633.78 = 1,991,481.84/x
  3. Step 3: Cross multiply
    2,629,340.64x = 3,933,633.78 × 1,991,481.84
  4. Step 4: Simplify right side
    2,629,340.64x = 7,833,760,238,080.56
  5. Step 5: Solve for x
    x = 7,833,760,238,080.56/2,629,340.64
  6. Step 6: Final answer
    x = 2,979,363.01

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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.