Home / 7,144.32-10,715.04-2,212.77

Finding the Fourth Proportional to 7,144.32, 10,715.04 and 2,212.77

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Solution

The fourth proportional to 7,144.32, 10,715.04 and 2,212.77 is: 3,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.32 : 10,715.04 = 2,212.77 : x
  2. Step 2: Convert to fraction form
    7,144.32/10,715.04 = 2,212.77/x
  3. Step 3: Cross multiply
    7,144.32x = 10,715.04 × 2,212.77
  4. Step 4: Simplify right side
    7,144.32x = 23,709,919.06
  5. Step 5: Solve for x
    x = 23,709,919.06/7,144.32
  6. Step 6: Final answer
    x = 3,318.71

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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.