Home / 4,109.94-6,168.56-1,919.90

Finding the Fourth Proportional to 4,109.94, 6,168.56 and 1,919.90

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Solution

The fourth proportional to 4,109.94, 6,168.56 and 1,919.90 is: 2,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.94 : 6,168.56 = 1,919.90 : x
  2. Step 2: Convert to fraction form
    4,109.94/6,168.56 = 1,919.90/x
  3. Step 3: Cross multiply
    4,109.94x = 6,168.56 × 1,919.90
  4. Step 4: Simplify right side
    4,109.94x = 11,843,007.72
  5. Step 5: Solve for x
    x = 11,843,007.72/4,109.94
  6. Step 6: Final answer
    x = 2,881.56

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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.