Home / 2,729.38-4,090.42-1,265.30

Finding the Fourth Proportional to 2,729.38, 4,090.42 and 1,265.30

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Solution

The fourth proportional to 2,729.38, 4,090.42 and 1,265.30 is: 1,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.38 : 4,090.42 = 1,265.30 : x
  2. Step 2: Convert to fraction form
    2,729.38/4,090.42 = 1,265.30/x
  3. Step 3: Cross multiply
    2,729.38x = 4,090.42 × 1,265.30
  4. Step 4: Simplify right side
    2,729.38x = 5,175,615.49
  5. Step 5: Solve for x
    x = 5,175,615.49/2,729.38
  6. Step 6: Final answer
    x = 1,896.26

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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.