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Finding the Fourth Proportional to 3,278.67, 4,910.16 and 2,884.68

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Solution

The fourth proportional to 3,278.67, 4,910.16 and 2,884.68 is: 4,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.67 : 4,910.16 = 2,884.68 : x
  2. Step 2: Convert to fraction form
    3,278.67/4,910.16 = 2,884.68/x
  3. Step 3: Cross multiply
    3,278.67x = 4,910.16 × 2,884.68
  4. Step 4: Simplify right side
    3,278.67x = 14,164,240.35
  5. Step 5: Solve for x
    x = 14,164,240.35/3,278.67
  6. Step 6: Final answer
    x = 4,320.12

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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.