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Finding the Fourth Proportional to 3,289.67, 4,933.65 and 949.15

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Solution

The fourth proportional to 3,289.67, 4,933.65 and 949.15 is: 1,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.67 : 4,933.65 = 949.15 : x
  2. Step 2: Convert to fraction form
    3,289.67/4,933.65 = 949.15/x
  3. Step 3: Cross multiply
    3,289.67x = 4,933.65 × 949.15
  4. Step 4: Simplify right side
    3,289.67x = 4,682,785.16
  5. Step 5: Solve for x
    x = 4,682,785.16/3,289.67
  6. Step 6: Final answer
    x = 1,423.48

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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.