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Finding the Fourth Proportional to 3,207.70, 4,811.70 and 1,016.60

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Solution

The fourth proportional to 3,207.70, 4,811.70 and 1,016.60 is: 1,524.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.70 : 4,811.70 = 1,016.60 : x
  2. Step 2: Convert to fraction form
    3,207.70/4,811.70 = 1,016.60/x
  3. Step 3: Cross multiply
    3,207.70x = 4,811.70 × 1,016.60
  4. Step 4: Simplify right side
    3,207.70x = 4,891,574.22
  5. Step 5: Solve for x
    x = 4,891,574.22/3,207.70
  6. Step 6: Final answer
    x = 1,524.95

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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.