Home / 7,138.94-10,709.57-2,207.44

Finding the Fourth Proportional to 7,138.94, 10,709.57 and 2,207.44

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Solution

The fourth proportional to 7,138.94, 10,709.57 and 2,207.44 is: 3,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.94 : 10,709.57 = 2,207.44 : x
  2. Step 2: Convert to fraction form
    7,138.94/10,709.57 = 2,207.44/x
  3. Step 3: Cross multiply
    7,138.94x = 10,709.57 × 2,207.44
  4. Step 4: Simplify right side
    7,138.94x = 23,640,733.20
  5. Step 5: Solve for x
    x = 23,640,733.20/7,138.94
  6. Step 6: Final answer
    x = 3,311.52

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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.