Home / 1,789.65-2,469.33-1,201.91

Finding the Fourth Proportional to 1,789.65, 2,469.33 and 1,201.91

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Solution

The fourth proportional to 1,789.65, 2,469.33 and 1,201.91 is: 1,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.65 : 2,469.33 = 1,201.91 : x
  2. Step 2: Convert to fraction form
    1,789.65/2,469.33 = 1,201.91/x
  3. Step 3: Cross multiply
    1,789.65x = 2,469.33 × 1,201.91
  4. Step 4: Simplify right side
    1,789.65x = 2,967,900.07
  5. Step 5: Solve for x
    x = 2,967,900.07/1,789.65
  6. Step 6: Final answer
    x = 1,658.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.