Home / 1,646.82-2,273.44-1,272.96

Finding the Fourth Proportional to 1,646.82, 2,273.44 and 1,272.96

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Solution

The fourth proportional to 1,646.82, 2,273.44 and 1,272.96 is: 1,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.82 : 2,273.44 = 1,272.96 : x
  2. Step 2: Convert to fraction form
    1,646.82/2,273.44 = 1,272.96/x
  3. Step 3: Cross multiply
    1,646.82x = 2,273.44 × 1,272.96
  4. Step 4: Simplify right side
    1,646.82x = 2,893,995.68
  5. Step 5: Solve for x
    x = 2,893,995.68/1,646.82
  6. Step 6: Final answer
    x = 1,757.32

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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.