Home / 1,497.26-2,066.78-1,286.60

Finding the Fourth Proportional to 1,497.26, 2,066.78 and 1,286.60

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Solution

The fourth proportional to 1,497.26, 2,066.78 and 1,286.60 is: 1,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.26 : 2,066.78 = 1,286.60 : x
  2. Step 2: Convert to fraction form
    1,497.26/2,066.78 = 1,286.60/x
  3. Step 3: Cross multiply
    1,497.26x = 2,066.78 × 1,286.60
  4. Step 4: Simplify right side
    1,497.26x = 2,659,112.03
  5. Step 5: Solve for x
    x = 2,659,112.03/1,497.26
  6. Step 6: Final answer
    x = 1,775.98

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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.