Home / 3,679.16-5,516.62-1,213.32

Finding the Fourth Proportional to 3,679.16, 5,516.62 and 1,213.32

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Solution

The fourth proportional to 3,679.16, 5,516.62 and 1,213.32 is: 1,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.16 : 5,516.62 = 1,213.32 : x
  2. Step 2: Convert to fraction form
    3,679.16/5,516.62 = 1,213.32/x
  3. Step 3: Cross multiply
    3,679.16x = 5,516.62 × 1,213.32
  4. Step 4: Simplify right side
    3,679.16x = 6,693,425.38
  5. Step 5: Solve for x
    x = 6,693,425.38/3,679.16
  6. Step 6: Final answer
    x = 1,819.28

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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.