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Finding the Fourth Proportional to 2,002.02, 3,003.21 and 769.74

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Solution

The fourth proportional to 2,002.02, 3,003.21 and 769.74 is: 1,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.02 : 3,003.21 = 769.74 : x
  2. Step 2: Convert to fraction form
    2,002.02/3,003.21 = 769.74/x
  3. Step 3: Cross multiply
    2,002.02x = 3,003.21 × 769.74
  4. Step 4: Simplify right side
    2,002.02x = 2,311,690.87
  5. Step 5: Solve for x
    x = 2,311,690.87/2,002.02
  6. Step 6: Final answer
    x = 1,154.68

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1.5x scale

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.