Home / 3,091.68-4,632.44-1,311.31

Finding the Fourth Proportional to 3,091.68, 4,632.44 and 1,311.31

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Solution

The fourth proportional to 3,091.68, 4,632.44 and 1,311.31 is: 1,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.68 : 4,632.44 = 1,311.31 : x
  2. Step 2: Convert to fraction form
    3,091.68/4,632.44 = 1,311.31/x
  3. Step 3: Cross multiply
    3,091.68x = 4,632.44 × 1,311.31
  4. Step 4: Simplify right side
    3,091.68x = 6,074,564.90
  5. Step 5: Solve for x
    x = 6,074,564.90/3,091.68
  6. Step 6: Final answer
    x = 1,964.81

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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.