Home / 2,748.41-4,121.60-1,188.64

Finding the Fourth Proportional to 2,748.41, 4,121.60 and 1,188.64

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Solution

The fourth proportional to 2,748.41, 4,121.60 and 1,188.64 is: 1,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.41 : 4,121.60 = 1,188.64 : x
  2. Step 2: Convert to fraction form
    2,748.41/4,121.60 = 1,188.64/x
  3. Step 3: Cross multiply
    2,748.41x = 4,121.60 × 1,188.64
  4. Step 4: Simplify right side
    2,748.41x = 4,899,104.52
  5. Step 5: Solve for x
    x = 4,899,104.52/2,748.41
  6. Step 6: Final answer
    x = 1,782.52

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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.