Home / 3,561.77-5,344.47-1,919.90

Finding the Fourth Proportional to 3,561.77, 5,344.47 and 1,919.90

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Solution

The fourth proportional to 3,561.77, 5,344.47 and 1,919.90 is: 2,880.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.77 : 5,344.47 = 1,919.90 : x
  2. Step 2: Convert to fraction form
    3,561.77/5,344.47 = 1,919.90/x
  3. Step 3: Cross multiply
    3,561.77x = 5,344.47 × 1,919.90
  4. Step 4: Simplify right side
    3,561.77x = 10,260,847.95
  5. Step 5: Solve for x
    x = 10,260,847.95/3,561.77
  6. Step 6: Final answer
    x = 2,880.83

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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.