Home / 2,789.19-3,849.09-1,530.33

Finding the Fourth Proportional to 2,789.19, 3,849.09 and 1,530.33

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Solution

The fourth proportional to 2,789.19, 3,849.09 and 1,530.33 is: 2,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.19 : 3,849.09 = 1,530.33 : x
  2. Step 2: Convert to fraction form
    2,789.19/3,849.09 = 1,530.33/x
  3. Step 3: Cross multiply
    2,789.19x = 3,849.09 × 1,530.33
  4. Step 4: Simplify right side
    2,789.19x = 5,890,377.90
  5. Step 5: Solve for x
    x = 5,890,377.90/2,789.19
  6. Step 6: Final answer
    x = 2,111.86

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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.