Home / 3,113.56-4,671.94-1,958.68

Finding the Fourth Proportional to 3,113.56, 4,671.94 and 1,958.68

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Solution

The fourth proportional to 3,113.56, 4,671.94 and 1,958.68 is: 2,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.56 : 4,671.94 = 1,958.68 : x
  2. Step 2: Convert to fraction form
    3,113.56/4,671.94 = 1,958.68/x
  3. Step 3: Cross multiply
    3,113.56x = 4,671.94 × 1,958.68
  4. Step 4: Simplify right side
    3,113.56x = 9,150,835.44
  5. Step 5: Solve for x
    x = 9,150,835.44/3,113.56
  6. Step 6: Final answer
    x = 2,939.03

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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.