Home / 3,919.65-5,876.79-1,453.14

Finding the Fourth Proportional to 3,919.65, 5,876.79 and 1,453.14

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Solution

The fourth proportional to 3,919.65, 5,876.79 and 1,453.14 is: 2,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.65 : 5,876.79 = 1,453.14 : x
  2. Step 2: Convert to fraction form
    3,919.65/5,876.79 = 1,453.14/x
  3. Step 3: Cross multiply
    3,919.65x = 5,876.79 × 1,453.14
  4. Step 4: Simplify right side
    3,919.65x = 8,539,798.62
  5. Step 5: Solve for x
    x = 8,539,798.62/3,919.65
  6. Step 6: Final answer
    x = 2,178.71

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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.