Home / 3,984.96-5,977.66-1,211.73

Finding the Fourth Proportional to 3,984.96, 5,977.66 and 1,211.73

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Solution

The fourth proportional to 3,984.96, 5,977.66 and 1,211.73 is: 1,817.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.96 : 5,977.66 = 1,211.73 : x
  2. Step 2: Convert to fraction form
    3,984.96/5,977.66 = 1,211.73/x
  3. Step 3: Cross multiply
    3,984.96x = 5,977.66 × 1,211.73
  4. Step 4: Simplify right side
    3,984.96x = 7,243,309.95
  5. Step 5: Solve for x
    x = 7,243,309.95/3,984.96
  6. Step 6: Final answer
    x = 1,817.66

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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.