Home / 2,656.19-3,986.82-1,270.28

Finding the Fourth Proportional to 2,656.19, 3,986.82 and 1,270.28

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Solution

The fourth proportional to 2,656.19, 3,986.82 and 1,270.28 is: 1,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.19 : 3,986.82 = 1,270.28 : x
  2. Step 2: Convert to fraction form
    2,656.19/3,986.82 = 1,270.28/x
  3. Step 3: Cross multiply
    2,656.19x = 3,986.82 × 1,270.28
  4. Step 4: Simplify right side
    2,656.19x = 5,064,387.68
  5. Step 5: Solve for x
    x = 5,064,387.68/2,656.19
  6. Step 6: Final answer
    x = 1,906.63

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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.