Home / 2,974.14-4,106.48-1,981.49

Finding the Fourth Proportional to 2,974.14, 4,106.48 and 1,981.49

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Solution

The fourth proportional to 2,974.14, 4,106.48 and 1,981.49 is: 2,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.14 : 4,106.48 = 1,981.49 : x
  2. Step 2: Convert to fraction form
    2,974.14/4,106.48 = 1,981.49/x
  3. Step 3: Cross multiply
    2,974.14x = 4,106.48 × 1,981.49
  4. Step 4: Simplify right side
    2,974.14x = 8,136,918.62
  5. Step 5: Solve for x
    x = 8,136,918.62/2,974.14
  6. Step 6: Final answer
    x = 2,735.89

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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.