Home / 3,211.54-4,817.58-1,020.46

Finding the Fourth Proportional to 3,211.54, 4,817.58 and 1,020.46

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Solution

The fourth proportional to 3,211.54, 4,817.58 and 1,020.46 is: 1,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.54 : 4,817.58 = 1,020.46 : x
  2. Step 2: Convert to fraction form
    3,211.54/4,817.58 = 1,020.46/x
  3. Step 3: Cross multiply
    3,211.54x = 4,817.58 × 1,020.46
  4. Step 4: Simplify right side
    3,211.54x = 4,916,147.69
  5. Step 5: Solve for x
    x = 4,916,147.69/3,211.54
  6. Step 6: Final answer
    x = 1,530.78

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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.