Home / 1,939.87-2,914.67-1,823.23

Finding the Fourth Proportional to 1,939.87, 2,914.67 and 1,823.23

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Solution

The fourth proportional to 1,939.87, 2,914.67 and 1,823.23 is: 2,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.87 : 2,914.67 = 1,823.23 : x
  2. Step 2: Convert to fraction form
    1,939.87/2,914.67 = 1,823.23/x
  3. Step 3: Cross multiply
    1,939.87x = 2,914.67 × 1,823.23
  4. Step 4: Simplify right side
    1,939.87x = 5,314,113.78
  5. Step 5: Solve for x
    x = 5,314,113.78/1,939.87
  6. Step 6: Final answer
    x = 2,739.42

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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.