Home / 3,987,910.47-5,503,288.46-2,177,074.47

Finding the Fourth Proportional to 3,987,910.47, 5,503,288.46 and 2,177,074.47

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Solution

The fourth proportional to 3,987,910.47, 5,503,288.46 and 2,177,074.47 is: 3,004,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,910.47 : 5,503,288.46 = 2,177,074.47 : x
  2. Step 2: Convert to fraction form
    3,987,910.47/5,503,288.46 = 2,177,074.47/x
  3. Step 3: Cross multiply
    3,987,910.47x = 5,503,288.46 × 2,177,074.47
  4. Step 4: Simplify right side
    3,987,910.47x = 11,981,068,796,426.25
  5. Step 5: Solve for x
    x = 11,981,068,796,426.25/3,987,910.47
  6. Step 6: Final answer
    x = 3,004,347.49

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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.