Home / 2,162.25-3,243.26-1,225.26

Finding the Fourth Proportional to 2,162.25, 3,243.26 and 1,225.26

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Solution

The fourth proportional to 2,162.25, 3,243.26 and 1,225.26 is: 1,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.25 : 3,243.26 = 1,225.26 : x
  2. Step 2: Convert to fraction form
    2,162.25/3,243.26 = 1,225.26/x
  3. Step 3: Cross multiply
    2,162.25x = 3,243.26 × 1,225.26
  4. Step 4: Simplify right side
    2,162.25x = 3,973,836.75
  5. Step 5: Solve for x
    x = 3,973,836.75/2,162.25
  6. Step 6: Final answer
    x = 1,837.82

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1.5x scale

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.