Home / 2,629,338.64-3,933,630.78-1,991,479.84

Finding the Fourth Proportional to 2,629,338.64, 3,933,630.78 and 1,991,479.84

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Solution

The fourth proportional to 2,629,338.64, 3,933,630.78 and 1,991,479.84 is: 2,979,360.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,338.64 : 3,933,630.78 = 1,991,479.84 : x
  2. Step 2: Convert to fraction form
    2,629,338.64/3,933,630.78 = 1,991,479.84/x
  3. Step 3: Cross multiply
    2,629,338.64x = 3,933,630.78 × 1,991,479.84
  4. Step 4: Simplify right side
    2,629,338.64x = 7,833,746,396,373.48
  5. Step 5: Solve for x
    x = 7,833,746,396,373.48/2,629,338.64
  6. Step 6: Final answer
    x = 2,979,360.01

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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.