Home / 3,109.41-4,664.32-1,260.49

Finding the Fourth Proportional to 3,109.41, 4,664.32 and 1,260.49

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Solution

The fourth proportional to 3,109.41, 4,664.32 and 1,260.49 is: 1,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.41 : 4,664.32 = 1,260.49 : x
  2. Step 2: Convert to fraction form
    3,109.41/4,664.32 = 1,260.49/x
  3. Step 3: Cross multiply
    3,109.41x = 4,664.32 × 1,260.49
  4. Step 4: Simplify right side
    3,109.41x = 5,879,305.40
  5. Step 5: Solve for x
    x = 5,879,305.40/3,109.41
  6. Step 6: Final answer
    x = 1,890.81

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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.