Home / 2,919.54-4,379.58-1,942.68

Finding the Fourth Proportional to 2,919.54, 4,379.58 and 1,942.68

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Solution

The fourth proportional to 2,919.54, 4,379.58 and 1,942.68 is: 2,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.54 : 4,379.58 = 1,942.68 : x
  2. Step 2: Convert to fraction form
    2,919.54/4,379.58 = 1,942.68/x
  3. Step 3: Cross multiply
    2,919.54x = 4,379.58 × 1,942.68
  4. Step 4: Simplify right side
    2,919.54x = 8,508,122.47
  5. Step 5: Solve for x
    x = 8,508,122.47/2,919.54
  6. Step 6: Final answer
    x = 2,914.20

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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.