Home / 3,278,738.80-4,912,859.40-2,155,495.60

Finding the Fourth Proportional to 3,278,738.80, 4,912,859.40 and 2,155,495.60

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Solution

The fourth proportional to 3,278,738.80, 4,912,859.40 and 2,155,495.60 is: 3,229,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278,738.80 : 4,912,859.40 = 2,155,495.60 : x
  2. Step 2: Convert to fraction form
    3,278,738.80/4,912,859.40 = 2,155,495.60/x
  3. Step 3: Cross multiply
    3,278,738.80x = 4,912,859.40 × 2,155,495.60
  4. Step 4: Simplify right side
    3,278,738.80x = 10,589,646,820,118.64
  5. Step 5: Solve for x
    x = 10,589,646,820,118.64/3,278,738.80
  6. Step 6: Final answer
    x = 3,229,792.75

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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.