Home / 1,939.95-2,908.29-1,609.96

Finding the Fourth Proportional to 1,939.95, 2,908.29 and 1,609.96

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Solution

The fourth proportional to 1,939.95, 2,908.29 and 1,609.96 is: 2,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.95 : 2,908.29 = 1,609.96 : x
  2. Step 2: Convert to fraction form
    1,939.95/2,908.29 = 1,609.96/x
  3. Step 3: Cross multiply
    1,939.95x = 2,908.29 × 1,609.96
  4. Step 4: Simplify right side
    1,939.95x = 4,682,223.30
  5. Step 5: Solve for x
    x = 4,682,223.30/1,939.95
  6. Step 6: Final answer
    x = 2,413.58

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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.