Home / 2,313.26-3,469.35-669.37

Finding the Fourth Proportional to 2,313.26, 3,469.35 and 669.37

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Solution

The fourth proportional to 2,313.26, 3,469.35 and 669.37 is: 1,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.26 : 3,469.35 = 669.37 : x
  2. Step 2: Convert to fraction form
    2,313.26/3,469.35 = 669.37/x
  3. Step 3: Cross multiply
    2,313.26x = 3,469.35 × 669.37
  4. Step 4: Simplify right side
    2,313.26x = 2,322,261.46
  5. Step 5: Solve for x
    x = 2,322,261.46/2,313.26
  6. Step 6: Final answer
    x = 1,003.89

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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.