Home / 3,412.05-4,708.61-1,919.96

Finding the Fourth Proportional to 3,412.05, 4,708.61 and 1,919.96

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Solution

The fourth proportional to 3,412.05, 4,708.61 and 1,919.96 is: 2,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.05 : 4,708.61 = 1,919.96 : x
  2. Step 2: Convert to fraction form
    3,412.05/4,708.61 = 1,919.96/x
  3. Step 3: Cross multiply
    3,412.05x = 4,708.61 × 1,919.96
  4. Step 4: Simplify right side
    3,412.05x = 9,040,342.86
  5. Step 5: Solve for x
    x = 9,040,342.86/3,412.05
  6. Step 6: Final answer
    x = 2,649.54

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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.