Home / 3,138.44-4,707.66-1,085.96

Finding the Fourth Proportional to 3,138.44, 4,707.66 and 1,085.96

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Solution

The fourth proportional to 3,138.44, 4,707.66 and 1,085.96 is: 1,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.44 : 4,707.66 = 1,085.96 : x
  2. Step 2: Convert to fraction form
    3,138.44/4,707.66 = 1,085.96/x
  3. Step 3: Cross multiply
    3,138.44x = 4,707.66 × 1,085.96
  4. Step 4: Simplify right side
    3,138.44x = 5,112,330.45
  5. Step 5: Solve for x
    x = 5,112,330.45/3,138.44
  6. Step 6: Final answer
    x = 1,628.94

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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.