Home / 2,231.04-3,342.16-1,189.64

Finding the Fourth Proportional to 2,231.04, 3,342.16 and 1,189.64

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Solution

The fourth proportional to 2,231.04, 3,342.16 and 1,189.64 is: 1,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.04 : 3,342.16 = 1,189.64 : x
  2. Step 2: Convert to fraction form
    2,231.04/3,342.16 = 1,189.64/x
  3. Step 3: Cross multiply
    2,231.04x = 3,342.16 × 1,189.64
  4. Step 4: Simplify right side
    2,231.04x = 3,975,958.27
  5. Step 5: Solve for x
    x = 3,975,958.27/2,231.04
  6. Step 6: Final answer
    x = 1,782.11

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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.