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Finding the Fourth Proportional to 3,951.11, 5,913.80 and 2,910.70

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Solution

The fourth proportional to 3,951.11, 5,913.80 and 2,910.70 is: 4,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.11 : 5,913.80 = 2,910.70 : x
  2. Step 2: Convert to fraction form
    3,951.11/5,913.80 = 2,910.70/x
  3. Step 3: Cross multiply
    3,951.11x = 5,913.80 × 2,910.70
  4. Step 4: Simplify right side
    3,951.11x = 17,213,297.66
  5. Step 5: Solve for x
    x = 17,213,297.66/3,951.11
  6. Step 6: Final answer
    x = 4,356.57

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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.