Home / 2,112.35-3,168.92-1,018.04

Finding the Fourth Proportional to 2,112.35, 3,168.92 and 1,018.04

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Solution

The fourth proportional to 2,112.35, 3,168.92 and 1,018.04 is: 1,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.35 : 3,168.92 = 1,018.04 : x
  2. Step 2: Convert to fraction form
    2,112.35/3,168.92 = 1,018.04/x
  3. Step 3: Cross multiply
    2,112.35x = 3,168.92 × 1,018.04
  4. Step 4: Simplify right side
    2,112.35x = 3,226,074.02
  5. Step 5: Solve for x
    x = 3,226,074.02/2,112.35
  6. Step 6: Final answer
    x = 1,527.25

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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.