Home / 2,832.12-4,243.84-1,187.77

Finding the Fourth Proportional to 2,832.12, 4,243.84 and 1,187.77

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Solution

The fourth proportional to 2,832.12, 4,243.84 and 1,187.77 is: 1,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,832.12 : 4,243.84 = 1,187.77 : x
  2. Step 2: Convert to fraction form
    2,832.12/4,243.84 = 1,187.77/x
  3. Step 3: Cross multiply
    2,832.12x = 4,243.84 × 1,187.77
  4. Step 4: Simplify right side
    2,832.12x = 5,040,705.84
  5. Step 5: Solve for x
    x = 5,040,705.84/2,832.12
  6. Step 6: Final answer
    x = 1,779.83

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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.