Home / 1,643.80-2,268.66-1,054.48

Finding the Fourth Proportional to 1,643.80, 2,268.66 and 1,054.48

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Solution

The fourth proportional to 1,643.80, 2,268.66 and 1,054.48 is: 1,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.80 : 2,268.66 = 1,054.48 : x
  2. Step 2: Convert to fraction form
    1,643.80/2,268.66 = 1,054.48/x
  3. Step 3: Cross multiply
    1,643.80x = 2,268.66 × 1,054.48
  4. Step 4: Simplify right side
    1,643.80x = 2,392,256.60
  5. Step 5: Solve for x
    x = 2,392,256.60/1,643.80
  6. Step 6: Final answer
    x = 1,455.32

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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.