Home / 2,939.92-4,407.19-1,090.60

Finding the Fourth Proportional to 2,939.92, 4,407.19 and 1,090.60

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Solution

The fourth proportional to 2,939.92, 4,407.19 and 1,090.60 is: 1,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.92 : 4,407.19 = 1,090.60 : x
  2. Step 2: Convert to fraction form
    2,939.92/4,407.19 = 1,090.60/x
  3. Step 3: Cross multiply
    2,939.92x = 4,407.19 × 1,090.60
  4. Step 4: Simplify right side
    2,939.92x = 4,806,481.41
  5. Step 5: Solve for x
    x = 4,806,481.41/2,939.92
  6. Step 6: Final answer
    x = 1,634.90

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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.