Home / 3,942,291.60-5,440,357.80-2,131,451.28

Finding the Fourth Proportional to 3,942,291.60, 5,440,357.80 and 2,131,451.28

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Solution

The fourth proportional to 3,942,291.60, 5,440,357.80 and 2,131,451.28 is: 2,941,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,291.60 : 5,440,357.80 = 2,131,451.28 : x
  2. Step 2: Convert to fraction form
    3,942,291.60/5,440,357.80 = 2,131,451.28/x
  3. Step 3: Cross multiply
    3,942,291.60x = 5,440,357.80 × 2,131,451.28
  4. Step 4: Simplify right side
    3,942,291.60x = 11,595,857,596,467.98
  5. Step 5: Solve for x
    x = 11,595,857,596,467.98/3,942,291.60
  6. Step 6: Final answer
    x = 2,941,400.28

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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.