Home / 7,181.36-9,908.84-4,196.61

Finding the Fourth Proportional to 7,181.36, 9,908.84 and 4,196.61

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Solution

The fourth proportional to 7,181.36, 9,908.84 and 4,196.61 is: 5,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.36 : 9,908.84 = 4,196.61 : x
  2. Step 2: Convert to fraction form
    7,181.36/9,908.84 = 4,196.61/x
  3. Step 3: Cross multiply
    7,181.36x = 9,908.84 × 4,196.61
  4. Step 4: Simplify right side
    7,181.36x = 41,583,516.05
  5. Step 5: Solve for x
    x = 41,583,516.05/7,181.36
  6. Step 6: Final answer
    x = 5,790.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.