Home / 3,942,290.60-5,440,356.42-2,131,450.28

Finding the Fourth Proportional to 3,942,290.60, 5,440,356.42 and 2,131,450.28

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Solution

The fourth proportional to 3,942,290.60, 5,440,356.42 and 2,131,450.28 is: 2,941,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,290.60 : 5,440,356.42 = 2,131,450.28 : x
  2. Step 2: Convert to fraction form
    3,942,290.60/5,440,356.42 = 2,131,450.28/x
  3. Step 3: Cross multiply
    3,942,290.60x = 5,440,356.42 × 2,131,450.28
  4. Step 4: Simplify right side
    3,942,290.60x = 11,595,849,214,708.80
  5. Step 5: Solve for x
    x = 11,595,849,214,708.80/3,942,290.60
  6. Step 6: Final answer
    x = 2,941,398.90

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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.