Home / 3,617,920.68-4,992,870.94-1,986,396.80

Finding the Fourth Proportional to 3,617,920.68, 4,992,870.94 and 1,986,396.80

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Solution

The fourth proportional to 3,617,920.68, 4,992,870.94 and 1,986,396.80 is: 2,741,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617,920.68 : 4,992,870.94 = 1,986,396.80 : x
  2. Step 2: Convert to fraction form
    3,617,920.68/4,992,870.94 = 1,986,396.80/x
  3. Step 3: Cross multiply
    3,617,920.68x = 4,992,870.94 × 1,986,396.80
  4. Step 4: Simplify right side
    3,617,920.68x = 9,917,822,858,028.99
  5. Step 5: Solve for x
    x = 9,917,822,858,028.99/3,617,920.68
  6. Step 6: Final answer
    x = 2,741,304.67

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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.