Home / 7,489-11,233.46-1,942.34

Finding the Fourth Proportional to 7,489, 11,233.46 and 1,942.34

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Solution

The fourth proportional to 7,489, 11,233.46 and 1,942.34 is: 2,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489 : 11,233.46 = 1,942.34 : x
  2. Step 2: Convert to fraction form
    7,489/11,233.46 = 1,942.34/x
  3. Step 3: Cross multiply
    7,489x = 11,233.46 × 1,942.34
  4. Step 4: Simplify right side
    7,489x = 21,819,198.70
  5. Step 5: Solve for x
    x = 21,819,198.70/7,489
  6. Step 6: Final answer
    x = 2,913.50

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Double scale
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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.