Home / 7,185.24-10,777.92-1,991.52

Finding the Fourth Proportional to 7,185.24, 10,777.92 and 1,991.52

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Solution

The fourth proportional to 7,185.24, 10,777.92 and 1,991.52 is: 2,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.24 : 10,777.92 = 1,991.52 : x
  2. Step 2: Convert to fraction form
    7,185.24/10,777.92 = 1,991.52/x
  3. Step 3: Cross multiply
    7,185.24x = 10,777.92 × 1,991.52
  4. Step 4: Simplify right side
    7,185.24x = 21,464,443.24
  5. Step 5: Solve for x
    x = 21,464,443.24/7,185.24
  6. Step 6: Final answer
    x = 2,987.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.