Home / 2,729.39-4,090.88-1,265.46

Finding the Fourth Proportional to 2,729.39, 4,090.88 and 1,265.46

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Solution

The fourth proportional to 2,729.39, 4,090.88 and 1,265.46 is: 1,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.39 : 4,090.88 = 1,265.46 : x
  2. Step 2: Convert to fraction form
    2,729.39/4,090.88 = 1,265.46/x
  3. Step 3: Cross multiply
    2,729.39x = 4,090.88 × 1,265.46
  4. Step 4: Simplify right side
    2,729.39x = 5,176,845.00
  5. Step 5: Solve for x
    x = 5,176,845.00/2,729.39
  6. Step 6: Final answer
    x = 1,896.70

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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.