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Finding the Fourth Proportional to 3,396.70, 4,685.70 and 2,277.73

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Solution

The fourth proportional to 3,396.70, 4,685.70 and 2,277.73 is: 3,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.70 : 4,685.70 = 2,277.73 : x
  2. Step 2: Convert to fraction form
    3,396.70/4,685.70 = 2,277.73/x
  3. Step 3: Cross multiply
    3,396.70x = 4,685.70 × 2,277.73
  4. Step 4: Simplify right side
    3,396.70x = 10,672,759.46
  5. Step 5: Solve for x
    x = 10,672,759.46/3,396.70
  6. Step 6: Final answer
    x = 3,142.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.