Home / 2,939.07-4,408.40-1,379.43

Finding the Fourth Proportional to 2,939.07, 4,408.40 and 1,379.43

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Solution

The fourth proportional to 2,939.07, 4,408.40 and 1,379.43 is: 2,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.07 : 4,408.40 = 1,379.43 : x
  2. Step 2: Convert to fraction form
    2,939.07/4,408.40 = 1,379.43/x
  3. Step 3: Cross multiply
    2,939.07x = 4,408.40 × 1,379.43
  4. Step 4: Simplify right side
    2,939.07x = 6,081,079.21
  5. Step 5: Solve for x
    x = 6,081,079.21/2,939.07
  6. Step 6: Final answer
    x = 2,069.05

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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.