Home / 3,172.16-4,758.48-1,224.32

Finding the Fourth Proportional to 3,172.16, 4,758.48 and 1,224.32

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Solution

The fourth proportional to 3,172.16, 4,758.48 and 1,224.32 is: 1,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.16 : 4,758.48 = 1,224.32 : x
  2. Step 2: Convert to fraction form
    3,172.16/4,758.48 = 1,224.32/x
  3. Step 3: Cross multiply
    3,172.16x = 4,758.48 × 1,224.32
  4. Step 4: Simplify right side
    3,172.16x = 5,825,878.44
  5. Step 5: Solve for x
    x = 5,825,878.44/3,172.16
  6. Step 6: Final answer
    x = 1,836.56

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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.