Home / 3,914,291.20-5,871,436.80-2,638,832.80

Finding the Fourth Proportional to 3,914,291.20, 5,871,436.80 and 2,638,832.80

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Solution

The fourth proportional to 3,914,291.20, 5,871,436.80 and 2,638,832.80 is: 3,958,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914,291.20 : 5,871,436.80 = 2,638,832.80 : x
  2. Step 2: Convert to fraction form
    3,914,291.20/5,871,436.80 = 2,638,832.80/x
  3. Step 3: Cross multiply
    3,914,291.20x = 5,871,436.80 × 2,638,832.80
  4. Step 4: Simplify right side
    3,914,291.20x = 15,493,740,010,967.04
  5. Step 5: Solve for x
    x = 15,493,740,010,967.04/3,914,291.20
  6. Step 6: Final answer
    x = 3,958,249.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.