Home / 2,912.59-4,370.71-1,939.37

Finding the Fourth Proportional to 2,912.59, 4,370.71 and 1,939.37

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Solution

The fourth proportional to 2,912.59, 4,370.71 and 1,939.37 is: 2,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.59 : 4,370.71 = 1,939.37 : x
  2. Step 2: Convert to fraction form
    2,912.59/4,370.71 = 1,939.37/x
  3. Step 3: Cross multiply
    2,912.59x = 4,370.71 × 1,939.37
  4. Step 4: Simplify right side
    2,912.59x = 8,476,429.93
  5. Step 5: Solve for x
    x = 8,476,429.93/2,912.59
  6. Step 6: Final answer
    x = 2,910.27

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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.