Home / 7,850.42-11,776.39-2,919.34

Finding the Fourth Proportional to 7,850.42, 11,776.39 and 2,919.34

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Solution

The fourth proportional to 7,850.42, 11,776.39 and 2,919.34 is: 4,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.42 : 11,776.39 = 2,919.34 : x
  2. Step 2: Convert to fraction form
    7,850.42/11,776.39 = 2,919.34/x
  3. Step 3: Cross multiply
    7,850.42x = 11,776.39 × 2,919.34
  4. Step 4: Simplify right side
    7,850.42x = 34,379,293.80
  5. Step 5: Solve for x
    x = 34,379,293.80/7,850.42
  6. Step 6: Final answer
    x = 4,379.29

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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.