Home / 7,188.25-10,782.38-1,994.13

Finding the Fourth Proportional to 7,188.25, 10,782.38 and 1,994.13

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Solution

The fourth proportional to 7,188.25, 10,782.38 and 1,994.13 is: 2,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.25 : 10,782.38 = 1,994.13 : x
  2. Step 2: Convert to fraction form
    7,188.25/10,782.38 = 1,994.13/x
  3. Step 3: Cross multiply
    7,188.25x = 10,782.38 × 1,994.13
  4. Step 4: Simplify right side
    7,188.25x = 21,501,467.43
  5. Step 5: Solve for x
    x = 21,501,467.43/7,188.25
  6. Step 6: Final answer
    x = 2,991.20

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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.