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Finding the Fourth Proportional to 2,270.64, 3,402.98 and 2,122.67

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Solution

The fourth proportional to 2,270.64, 3,402.98 and 2,122.67 is: 3,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.64 : 3,402.98 = 2,122.67 : x
  2. Step 2: Convert to fraction form
    2,270.64/3,402.98 = 2,122.67/x
  3. Step 3: Cross multiply
    2,270.64x = 3,402.98 × 2,122.67
  4. Step 4: Simplify right side
    2,270.64x = 7,223,375.93
  5. Step 5: Solve for x
    x = 7,223,375.93/2,270.64
  6. Step 6: Final answer
    x = 3,181.21

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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.