Home / 3,211.97-4,817.94-1,020.87

Finding the Fourth Proportional to 3,211.97, 4,817.94 and 1,020.87

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Solution

The fourth proportional to 3,211.97, 4,817.94 and 1,020.87 is: 1,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.97 : 4,817.94 = 1,020.87 : x
  2. Step 2: Convert to fraction form
    3,211.97/4,817.94 = 1,020.87/x
  3. Step 3: Cross multiply
    3,211.97x = 4,817.94 × 1,020.87
  4. Step 4: Simplify right side
    3,211.97x = 4,918,490.41
  5. Step 5: Solve for x
    x = 4,918,490.41/3,211.97
  6. Step 6: Final answer
    x = 1,531.30

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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.