Home / 7,489-11,233.45-1,942.33

Finding the Fourth Proportional to 7,489, 11,233.45 and 1,942.33

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Solution

The fourth proportional to 7,489, 11,233.45 and 1,942.33 is: 2,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489 : 11,233.45 = 1,942.33 : x
  2. Step 2: Convert to fraction form
    7,489/11,233.45 = 1,942.33/x
  3. Step 3: Cross multiply
    7,489x = 11,233.45 × 1,942.33
  4. Step 4: Simplify right side
    7,489x = 21,819,066.94
  5. Step 5: Solve for x
    x = 21,819,066.94/7,489
  6. Step 6: Final answer
    x = 2,913.48

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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.