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Finding the Fourth Proportional to 3,783.15, 5,674.73 and 1,839.15

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Solution

The fourth proportional to 3,783.15, 5,674.73 and 1,839.15 is: 2,758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.15 : 5,674.73 = 1,839.15 : x
  2. Step 2: Convert to fraction form
    3,783.15/5,674.73 = 1,839.15/x
  3. Step 3: Cross multiply
    3,783.15x = 5,674.73 × 1,839.15
  4. Step 4: Simplify right side
    3,783.15x = 10,436,679.68
  5. Step 5: Solve for x
    x = 10,436,679.68/3,783.15
  6. Step 6: Final answer
    x = 2,758.73

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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.