Home / 3,987,911.47-5,503,289.83-2,177,075.47

Finding the Fourth Proportional to 3,987,911.47, 5,503,289.83 and 2,177,075.47

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Solution

The fourth proportional to 3,987,911.47, 5,503,289.83 and 2,177,075.47 is: 3,004,348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,911.47 : 5,503,289.83 = 2,177,075.47 : x
  2. Step 2: Convert to fraction form
    3,987,911.47/5,503,289.83 = 2,177,075.47/x
  3. Step 3: Cross multiply
    3,987,911.47x = 5,503,289.83 × 2,177,075.47
  4. Step 4: Simplify right side
    3,987,911.47x = 11,981,077,293,193.47
  5. Step 5: Solve for x
    x = 11,981,077,293,193.47/3,987,911.47
  6. Step 6: Final answer
    x = 3,004,348.86

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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.