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Finding the Fourth Proportional to 3,310.42, 4,965.19 and 845.26

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Solution

The fourth proportional to 3,310.42, 4,965.19 and 845.26 is: 1,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.42 : 4,965.19 = 845.26 : x
  2. Step 2: Convert to fraction form
    3,310.42/4,965.19 = 845.26/x
  3. Step 3: Cross multiply
    3,310.42x = 4,965.19 × 845.26
  4. Step 4: Simplify right side
    3,310.42x = 4,196,876.50
  5. Step 5: Solve for x
    x = 4,196,876.50/3,310.42
  6. Step 6: Final answer
    x = 1,267.78

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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.