Home / 2,152.22-3,228.96-1,112.81

Finding the Fourth Proportional to 2,152.22, 3,228.96 and 1,112.81

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Solution

The fourth proportional to 2,152.22, 3,228.96 and 1,112.81 is: 1,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.22 : 3,228.96 = 1,112.81 : x
  2. Step 2: Convert to fraction form
    2,152.22/3,228.96 = 1,112.81/x
  3. Step 3: Cross multiply
    2,152.22x = 3,228.96 × 1,112.81
  4. Step 4: Simplify right side
    2,152.22x = 3,593,218.98
  5. Step 5: Solve for x
    x = 3,593,218.98/2,152.22
  6. Step 6: Final answer
    x = 1,669.54

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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.