Home / 2,551.36-3,817.92-1,999.75

Finding the Fourth Proportional to 2,551.36, 3,817.92 and 1,999.75

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Solution

The fourth proportional to 2,551.36, 3,817.92 and 1,999.75 is: 2,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.36 : 3,817.92 = 1,999.75 : x
  2. Step 2: Convert to fraction form
    2,551.36/3,817.92 = 1,999.75/x
  3. Step 3: Cross multiply
    2,551.36x = 3,817.92 × 1,999.75
  4. Step 4: Simplify right side
    2,551.36x = 7,634,885.52
  5. Step 5: Solve for x
    x = 7,634,885.52/2,551.36
  6. Step 6: Final answer
    x = 2,992.48

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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.