Home / 3,946.25-5,919.99-1,172.64

Finding the Fourth Proportional to 3,946.25, 5,919.99 and 1,172.64

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Solution

The fourth proportional to 3,946.25, 5,919.99 and 1,172.64 is: 1,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.25 : 5,919.99 = 1,172.64 : x
  2. Step 2: Convert to fraction form
    3,946.25/5,919.99 = 1,172.64/x
  3. Step 3: Cross multiply
    3,946.25x = 5,919.99 × 1,172.64
  4. Step 4: Simplify right side
    3,946.25x = 6,942,017.07
  5. Step 5: Solve for x
    x = 6,942,017.07/3,946.25
  6. Step 6: Final answer
    x = 1,759.14

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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.