Home / 2,120.06-3,179.93-1,079.41

Finding the Fourth Proportional to 2,120.06, 3,179.93 and 1,079.41

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Solution

The fourth proportional to 2,120.06, 3,179.93 and 1,079.41 is: 1,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.06 : 3,179.93 = 1,079.41 : x
  2. Step 2: Convert to fraction form
    2,120.06/3,179.93 = 1,079.41/x
  3. Step 3: Cross multiply
    2,120.06x = 3,179.93 × 1,079.41
  4. Step 4: Simplify right side
    2,120.06x = 3,432,448.24
  5. Step 5: Solve for x
    x = 3,432,448.24/2,120.06
  6. Step 6: Final answer
    x = 1,619.03

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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.