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Finding the Fourth Proportional to 3,740.37, 5,609.49 and 1,274.63

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Solution

The fourth proportional to 3,740.37, 5,609.49 and 1,274.63 is: 1,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.37 : 5,609.49 = 1,274.63 : x
  2. Step 2: Convert to fraction form
    3,740.37/5,609.49 = 1,274.63/x
  3. Step 3: Cross multiply
    3,740.37x = 5,609.49 × 1,274.63
  4. Step 4: Simplify right side
    3,740.37x = 7,149,996.19
  5. Step 5: Solve for x
    x = 7,149,996.19/3,740.37
  6. Step 6: Final answer
    x = 1,911.57

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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.