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Finding the Fourth Proportional to 3,286.63, 4,928.45 and 946.10

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Solution

The fourth proportional to 3,286.63, 4,928.45 and 946.10 is: 1,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.63 : 4,928.45 = 946.10 : x
  2. Step 2: Convert to fraction form
    3,286.63/4,928.45 = 946.10/x
  3. Step 3: Cross multiply
    3,286.63x = 4,928.45 × 946.10
  4. Step 4: Simplify right side
    3,286.63x = 4,662,781.90
  5. Step 5: Solve for x
    x = 4,662,781.90/3,286.63
  6. Step 6: Final answer
    x = 1,418.71

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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.