Home / 3,111.21-4,664.59-1,723.68

Finding the Fourth Proportional to 3,111.21, 4,664.59 and 1,723.68

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Solution

The fourth proportional to 3,111.21, 4,664.59 and 1,723.68 is: 2,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.21 : 4,664.59 = 1,723.68 : x
  2. Step 2: Convert to fraction form
    3,111.21/4,664.59 = 1,723.68/x
  3. Step 3: Cross multiply
    3,111.21x = 4,664.59 × 1,723.68
  4. Step 4: Simplify right side
    3,111.21x = 8,040,256.18
  5. Step 5: Solve for x
    x = 8,040,256.18/3,111.21
  6. Step 6: Final answer
    x = 2,584.29

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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.