Home / 1,450.26-2,174.09-669.87

Finding the Fourth Proportional to 1,450.26, 2,174.09 and 669.87

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Solution

The fourth proportional to 1,450.26, 2,174.09 and 669.87 is: 1,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.26 : 2,174.09 = 669.87 : x
  2. Step 2: Convert to fraction form
    1,450.26/2,174.09 = 669.87/x
  3. Step 3: Cross multiply
    1,450.26x = 2,174.09 × 669.87
  4. Step 4: Simplify right side
    1,450.26x = 1,456,357.67
  5. Step 5: Solve for x
    x = 1,456,357.67/1,450.26
  6. Step 6: Final answer
    x = 1,004.20

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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.