Home / 5,251.69-7,876.62-1,919.25

Finding the Fourth Proportional to 5,251.69, 7,876.62 and 1,919.25

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Solution

The fourth proportional to 5,251.69, 7,876.62 and 1,919.25 is: 2,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.69 : 7,876.62 = 1,919.25 : x
  2. Step 2: Convert to fraction form
    5,251.69/7,876.62 = 1,919.25/x
  3. Step 3: Cross multiply
    5,251.69x = 7,876.62 × 1,919.25
  4. Step 4: Simplify right side
    5,251.69x = 15,117,202.94
  5. Step 5: Solve for x
    x = 15,117,202.94/5,251.69
  6. Step 6: Final answer
    x = 2,878.54

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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.