Home / 2,111.36-3,167.04-1,137.74

Finding the Fourth Proportional to 2,111.36, 3,167.04 and 1,137.74

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Solution

The fourth proportional to 2,111.36, 3,167.04 and 1,137.74 is: 1,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.36 : 3,167.04 = 1,137.74 : x
  2. Step 2: Convert to fraction form
    2,111.36/3,167.04 = 1,137.74/x
  3. Step 3: Cross multiply
    2,111.36x = 3,167.04 × 1,137.74
  4. Step 4: Simplify right side
    2,111.36x = 3,603,268.09
  5. Step 5: Solve for x
    x = 3,603,268.09/2,111.36
  6. Step 6: Final answer
    x = 1,706.61

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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.