Home / 3,449.08-5,172.20-1,368.80

Finding the Fourth Proportional to 3,449.08, 5,172.20 and 1,368.80

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Solution

The fourth proportional to 3,449.08, 5,172.20 and 1,368.80 is: 2,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.08 : 5,172.20 = 1,368.80 : x
  2. Step 2: Convert to fraction form
    3,449.08/5,172.20 = 1,368.80/x
  3. Step 3: Cross multiply
    3,449.08x = 5,172.20 × 1,368.80
  4. Step 4: Simplify right side
    3,449.08x = 7,079,706.88
  5. Step 5: Solve for x
    x = 7,079,706.88/3,449.08
  6. Step 6: Final answer
    x = 2,052.64

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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.