Home / 3,311.12-4,968.66-1,231.31

Finding the Fourth Proportional to 3,311.12, 4,968.66 and 1,231.31

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Solution

The fourth proportional to 3,311.12, 4,968.66 and 1,231.31 is: 1,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.12 : 4,968.66 = 1,231.31 : x
  2. Step 2: Convert to fraction form
    3,311.12/4,968.66 = 1,231.31/x
  3. Step 3: Cross multiply
    3,311.12x = 4,968.66 × 1,231.31
  4. Step 4: Simplify right side
    3,311.12x = 6,117,960.74
  5. Step 5: Solve for x
    x = 6,117,960.74/3,311.12
  6. Step 6: Final answer
    x = 1,847.70

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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.