Home / 9,120.37-13,680.55-2,194.87

Finding the Fourth Proportional to 9,120.37, 13,680.55 and 2,194.87

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Solution

The fourth proportional to 9,120.37, 13,680.55 and 2,194.87 is: 3,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.37 : 13,680.55 = 2,194.87 : x
  2. Step 2: Convert to fraction form
    9,120.37/13,680.55 = 2,194.87/x
  3. Step 3: Cross multiply
    9,120.37x = 13,680.55 × 2,194.87
  4. Step 4: Simplify right side
    9,120.37x = 30,026,960.38
  5. Step 5: Solve for x
    x = 30,026,960.38/9,120.37
  6. Step 6: Final answer
    x = 3,292.30

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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.