Home / 1,643.82-2,268.99-1,055.94

Finding the Fourth Proportional to 1,643.82, 2,268.99 and 1,055.94

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Solution

The fourth proportional to 1,643.82, 2,268.99 and 1,055.94 is: 1,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.82 : 2,268.99 = 1,055.94 : x
  2. Step 2: Convert to fraction form
    1,643.82/2,268.99 = 1,055.94/x
  3. Step 3: Cross multiply
    1,643.82x = 2,268.99 × 1,055.94
  4. Step 4: Simplify right side
    1,643.82x = 2,395,917.30
  5. Step 5: Solve for x
    x = 2,395,917.30/1,643.82
  6. Step 6: Final answer
    x = 1,457.53

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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.