Home / 2,112.38-3,169.50-1,137.34

Finding the Fourth Proportional to 2,112.38, 3,169.50 and 1,137.34

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Solution

The fourth proportional to 2,112.38, 3,169.50 and 1,137.34 is: 1,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.38 : 3,169.50 = 1,137.34 : x
  2. Step 2: Convert to fraction form
    2,112.38/3,169.50 = 1,137.34/x
  3. Step 3: Cross multiply
    2,112.38x = 3,169.50 × 1,137.34
  4. Step 4: Simplify right side
    2,112.38x = 3,604,798.83
  5. Step 5: Solve for x
    x = 3,604,798.83/2,112.38
  6. Step 6: Final answer
    x = 1,706.51

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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.