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Finding the Fourth Proportional to 2,002.28, 3,003.41 and 770.27

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Solution

The fourth proportional to 2,002.28, 3,003.41 and 770.27 is: 1,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.28 : 3,003.41 = 770.27 : x
  2. Step 2: Convert to fraction form
    2,002.28/3,003.41 = 770.27/x
  3. Step 3: Cross multiply
    2,002.28x = 3,003.41 × 770.27
  4. Step 4: Simplify right side
    2,002.28x = 2,313,417.75
  5. Step 5: Solve for x
    x = 2,313,417.75/2,002.28
  6. Step 6: Final answer
    x = 1,155.39

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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.