Home / 2,162.06-3,247.00-1,988.41

Finding the Fourth Proportional to 2,162.06, 3,247.00 and 1,988.41

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Solution

The fourth proportional to 2,162.06, 3,247.00 and 1,988.41 is: 2,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.06 : 3,247.00 = 1,988.41 : x
  2. Step 2: Convert to fraction form
    2,162.06/3,247.00 = 1,988.41/x
  3. Step 3: Cross multiply
    2,162.06x = 3,247.00 × 1,988.41
  4. Step 4: Simplify right side
    2,162.06x = 6,456,357.33
  5. Step 5: Solve for x
    x = 6,456,357.33/2,162.06
  6. Step 6: Final answer
    x = 2,986.21

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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.