Home / 2,815.74-4,213.08-1,996.02

Finding the Fourth Proportional to 2,815.74, 4,213.08 and 1,996.02

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Solution

The fourth proportional to 2,815.74, 4,213.08 and 1,996.02 is: 2,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.74 : 4,213.08 = 1,996.02 : x
  2. Step 2: Convert to fraction form
    2,815.74/4,213.08 = 1,996.02/x
  3. Step 3: Cross multiply
    2,815.74x = 4,213.08 × 1,996.02
  4. Step 4: Simplify right side
    2,815.74x = 8,409,391.94
  5. Step 5: Solve for x
    x = 8,409,391.94/2,815.74
  6. Step 6: Final answer
    x = 2,986.57

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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.