Home / 2,079.44-3,120.51-1,912.58

Finding the Fourth Proportional to 2,079.44, 3,120.51 and 1,912.58

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Solution

The fourth proportional to 2,079.44, 3,120.51 and 1,912.58 is: 2,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.44 : 3,120.51 = 1,912.58 : x
  2. Step 2: Convert to fraction form
    2,079.44/3,120.51 = 1,912.58/x
  3. Step 3: Cross multiply
    2,079.44x = 3,120.51 × 1,912.58
  4. Step 4: Simplify right side
    2,079.44x = 5,968,225.02
  5. Step 5: Solve for x
    x = 5,968,225.02/2,079.44
  6. Step 6: Final answer
    x = 2,870.11

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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.