Home / 3,678.05-5,516.87-2,157.44

Finding the Fourth Proportional to 3,678.05, 5,516.87 and 2,157.44

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Solution

The fourth proportional to 3,678.05, 5,516.87 and 2,157.44 is: 3,236.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.05 : 5,516.87 = 2,157.44 : x
  2. Step 2: Convert to fraction form
    3,678.05/5,516.87 = 2,157.44/x
  3. Step 3: Cross multiply
    3,678.05x = 5,516.87 × 2,157.44
  4. Step 4: Simplify right side
    3,678.05x = 11,902,293.82
  5. Step 5: Solve for x
    x = 11,902,293.82/3,678.05
  6. Step 6: Final answer
    x = 3,236.04

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1.5x scale

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.