Home / 2,974.41-4,102.20-1,912.35

Finding the Fourth Proportional to 2,974.41, 4,102.20 and 1,912.35

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Solution

The fourth proportional to 2,974.41, 4,102.20 and 1,912.35 is: 2,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.41 : 4,102.20 = 1,912.35 : x
  2. Step 2: Convert to fraction form
    2,974.41/4,102.20 = 1,912.35/x
  3. Step 3: Cross multiply
    2,974.41x = 4,102.20 × 1,912.35
  4. Step 4: Simplify right side
    2,974.41x = 7,844,842.17
  5. Step 5: Solve for x
    x = 7,844,842.17/2,974.41
  6. Step 6: Final answer
    x = 2,637.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.