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Finding the Fourth Proportional to 2,909.88, 4,354.56 and 2,743.56

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Solution

The fourth proportional to 2,909.88, 4,354.56 and 2,743.56 is: 4,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.88 : 4,354.56 = 2,743.56 : x
  2. Step 2: Convert to fraction form
    2,909.88/4,354.56 = 2,743.56/x
  3. Step 3: Cross multiply
    2,909.88x = 4,354.56 × 2,743.56
  4. Step 4: Simplify right side
    2,909.88x = 11,946,996.63
  5. Step 5: Solve for x
    x = 11,946,996.63/2,909.88
  6. Step 6: Final answer
    x = 4,105.67

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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.