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Finding the Fourth Proportional to 2,770.77, 4,156.20 and 796.57

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Solution

The fourth proportional to 2,770.77, 4,156.20 and 796.57 is: 1,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.77 : 4,156.20 = 796.57 : x
  2. Step 2: Convert to fraction form
    2,770.77/4,156.20 = 796.57/x
  3. Step 3: Cross multiply
    2,770.77x = 4,156.20 × 796.57
  4. Step 4: Simplify right side
    2,770.77x = 3,310,693.84
  5. Step 5: Solve for x
    x = 3,310,693.84/2,770.77
  6. Step 6: Final answer
    x = 1,194.86

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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.