Home / 2,910.70-4,015.22-1,791.88

Finding the Fourth Proportional to 2,910.70, 4,015.22 and 1,791.88

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Solution

The fourth proportional to 2,910.70, 4,015.22 and 1,791.88 is: 2,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.70 : 4,015.22 = 1,791.88 : x
  2. Step 2: Convert to fraction form
    2,910.70/4,015.22 = 1,791.88/x
  3. Step 3: Cross multiply
    2,910.70x = 4,015.22 × 1,791.88
  4. Step 4: Simplify right side
    2,910.70x = 7,194,792.41
  5. Step 5: Solve for x
    x = 7,194,792.41/2,910.70
  6. Step 6: Final answer
    x = 2,471.84

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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.