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Finding the Fourth Proportional to 2,402.63, 3,604.07 and 671.39

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Solution

The fourth proportional to 2,402.63, 3,604.07 and 671.39 is: 1,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.63 : 3,604.07 = 671.39 : x
  2. Step 2: Convert to fraction form
    2,402.63/3,604.07 = 671.39/x
  3. Step 3: Cross multiply
    2,402.63x = 3,604.07 × 671.39
  4. Step 4: Simplify right side
    2,402.63x = 2,419,720.22
  5. Step 5: Solve for x
    x = 2,419,720.22/2,402.63
  6. Step 6: Final answer
    x = 1,007.12

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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.