Home / 7,072.21-10,611.05-2,141.89

Finding the Fourth Proportional to 7,072.21, 10,611.05 and 2,141.89

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Solution

The fourth proportional to 7,072.21, 10,611.05 and 2,141.89 is: 3,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.21 : 10,611.05 = 2,141.89 : x
  2. Step 2: Convert to fraction form
    7,072.21/10,611.05 = 2,141.89/x
  3. Step 3: Cross multiply
    7,072.21x = 10,611.05 × 2,141.89
  4. Step 4: Simplify right side
    7,072.21x = 22,727,736.38
  5. Step 5: Solve for x
    x = 22,727,736.38/7,072.21
  6. Step 6: Final answer
    x = 3,213.67

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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.