Home / 3,858,940.90-5,325,665.79-2,140,615

Finding the Fourth Proportional to 3,858,940.90, 5,325,665.79 and 2,140,615

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Solution

The fourth proportional to 3,858,940.90, 5,325,665.79 and 2,140,615 is: 2,954,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,940.90 : 5,325,665.79 = 2,140,615 : x
  2. Step 2: Convert to fraction form
    3,858,940.90/5,325,665.79 = 2,140,615/x
  3. Step 3: Cross multiply
    3,858,940.90x = 5,325,665.79 × 2,140,615
  4. Step 4: Simplify right side
    3,858,940.90x = 11,400,200,075,060.85
  5. Step 5: Solve for x
    x = 11,400,200,075,060.85/3,858,940.90
  6. Step 6: Final answer
    x = 2,954,230.29

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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.