Home / 2,391.14-3,586.89-659.75

Finding the Fourth Proportional to 2,391.14, 3,586.89 and 659.75

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Solution

The fourth proportional to 2,391.14, 3,586.89 and 659.75 is: 989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.14 : 3,586.89 = 659.75 : x
  2. Step 2: Convert to fraction form
    2,391.14/3,586.89 = 659.75/x
  3. Step 3: Cross multiply
    2,391.14x = 3,586.89 × 659.75
  4. Step 4: Simplify right side
    2,391.14x = 2,366,450.68
  5. Step 5: Solve for x
    x = 2,366,450.68/2,391.14
  6. Step 6: Final answer
    x = 989.67

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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.