Home / 3,090.66-4,265.33-1,912.41

Finding the Fourth Proportional to 3,090.66, 4,265.33 and 1,912.41

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Solution

The fourth proportional to 3,090.66, 4,265.33 and 1,912.41 is: 2,639.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.66 : 4,265.33 = 1,912.41 : x
  2. Step 2: Convert to fraction form
    3,090.66/4,265.33 = 1,912.41/x
  3. Step 3: Cross multiply
    3,090.66x = 4,265.33 × 1,912.41
  4. Step 4: Simplify right side
    3,090.66x = 8,157,066.32
  5. Step 5: Solve for x
    x = 8,157,066.32/3,090.66
  6. Step 6: Final answer
    x = 2,639.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.