Home / 7,934.72-11,902.70-2,091.26

Finding the Fourth Proportional to 7,934.72, 11,902.70 and 2,091.26

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Solution

The fourth proportional to 7,934.72, 11,902.70 and 2,091.26 is: 3,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.72 : 11,902.70 = 2,091.26 : x
  2. Step 2: Convert to fraction form
    7,934.72/11,902.70 = 2,091.26/x
  3. Step 3: Cross multiply
    7,934.72x = 11,902.70 × 2,091.26
  4. Step 4: Simplify right side
    7,934.72x = 24,891,640.40
  5. Step 5: Solve for x
    x = 24,891,640.40/7,934.72
  6. Step 6: Final answer
    x = 3,137.05

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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.