Home / 3,897,204.71-5,378,255.78-2,131,206.84

Finding the Fourth Proportional to 3,897,204.71, 5,378,255.78 and 2,131,206.84

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Solution

The fourth proportional to 3,897,204.71, 5,378,255.78 and 2,131,206.84 is: 2,941,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,204.71 : 5,378,255.78 = 2,131,206.84 : x
  2. Step 2: Convert to fraction form
    3,897,204.71/5,378,255.78 = 2,131,206.84/x
  3. Step 3: Cross multiply
    3,897,204.71x = 5,378,255.78 × 2,131,206.84
  4. Step 4: Simplify right side
    3,897,204.71x = 11,462,175,494,949.50
  5. Step 5: Solve for x
    x = 11,462,175,494,949.50/3,897,204.71
  6. Step 6: Final answer
    x = 2,941,127.39

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1.5x scale

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.