Home / 2,515.38-3,768.03-1,996.26

Finding the Fourth Proportional to 2,515.38, 3,768.03 and 1,996.26

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Solution

The fourth proportional to 2,515.38, 3,768.03 and 1,996.26 is: 2,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.38 : 3,768.03 = 1,996.26 : x
  2. Step 2: Convert to fraction form
    2,515.38/3,768.03 = 1,996.26/x
  3. Step 3: Cross multiply
    2,515.38x = 3,768.03 × 1,996.26
  4. Step 4: Simplify right side
    2,515.38x = 7,521,967.57
  5. Step 5: Solve for x
    x = 7,521,967.57/2,515.38
  6. Step 6: Final answer
    x = 2,990.39

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1.5x scale

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.