Home / 3,743.06-5,615.80-1,279.44

Finding the Fourth Proportional to 3,743.06, 5,615.80 and 1,279.44

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Solution

The fourth proportional to 3,743.06, 5,615.80 and 1,279.44 is: 1,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.06 : 5,615.80 = 1,279.44 : x
  2. Step 2: Convert to fraction form
    3,743.06/5,615.80 = 1,279.44/x
  3. Step 3: Cross multiply
    3,743.06x = 5,615.80 × 1,279.44
  4. Step 4: Simplify right side
    3,743.06x = 7,185,079.15
  5. Step 5: Solve for x
    x = 7,185,079.15/3,743.06
  6. Step 6: Final answer
    x = 1,919.57

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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.