Home / 3,946.62-5,918.91-1,172.64

Finding the Fourth Proportional to 3,946.62, 5,918.91 and 1,172.64

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Solution

The fourth proportional to 3,946.62, 5,918.91 and 1,172.64 is: 1,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.62 : 5,918.91 = 1,172.64 : x
  2. Step 2: Convert to fraction form
    3,946.62/5,918.91 = 1,172.64/x
  3. Step 3: Cross multiply
    3,946.62x = 5,918.91 × 1,172.64
  4. Step 4: Simplify right side
    3,946.62x = 6,940,750.62
  5. Step 5: Solve for x
    x = 6,940,750.62/3,946.62
  6. Step 6: Final answer
    x = 1,758.66

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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.