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Finding the Fourth Proportional to 3,379.38, 5,069.04 and 914.44

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Solution

The fourth proportional to 3,379.38, 5,069.04 and 914.44 is: 1,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.38 : 5,069.04 = 914.44 : x
  2. Step 2: Convert to fraction form
    3,379.38/5,069.04 = 914.44/x
  3. Step 3: Cross multiply
    3,379.38x = 5,069.04 × 914.44
  4. Step 4: Simplify right side
    3,379.38x = 4,635,332.94
  5. Step 5: Solve for x
    x = 4,635,332.94/3,379.38
  6. Step 6: Final answer
    x = 1,371.65

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1.5x scale

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.