Home / 1,939.56-2,910.15-1,323.96

Finding the Fourth Proportional to 1,939.56, 2,910.15 and 1,323.96

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Solution

The fourth proportional to 1,939.56, 2,910.15 and 1,323.96 is: 1,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.56 : 2,910.15 = 1,323.96 : x
  2. Step 2: Convert to fraction form
    1,939.56/2,910.15 = 1,323.96/x
  3. Step 3: Cross multiply
    1,939.56x = 2,910.15 × 1,323.96
  4. Step 4: Simplify right side
    1,939.56x = 3,852,922.19
  5. Step 5: Solve for x
    x = 3,852,922.19/1,939.56
  6. Step 6: Final answer
    x = 1,986.49

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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.