Home / 1,879.14-2,591.63-1,408.14

Finding the Fourth Proportional to 1,879.14, 2,591.63 and 1,408.14

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Solution

The fourth proportional to 1,879.14, 2,591.63 and 1,408.14 is: 1,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.14 : 2,591.63 = 1,408.14 : x
  2. Step 2: Convert to fraction form
    1,879.14/2,591.63 = 1,408.14/x
  3. Step 3: Cross multiply
    1,879.14x = 2,591.63 × 1,408.14
  4. Step 4: Simplify right side
    1,879.14x = 3,649,377.87
  5. Step 5: Solve for x
    x = 3,649,377.87/1,879.14
  6. Step 6: Final answer
    x = 1,942.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.