Home / 3,947.37-5,447.16-2,268.51

Finding the Fourth Proportional to 3,947.37, 5,447.16 and 2,268.51

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Solution

The fourth proportional to 3,947.37, 5,447.16 and 2,268.51 is: 3,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.37 : 5,447.16 = 2,268.51 : x
  2. Step 2: Convert to fraction form
    3,947.37/5,447.16 = 2,268.51/x
  3. Step 3: Cross multiply
    3,947.37x = 5,447.16 × 2,268.51
  4. Step 4: Simplify right side
    3,947.37x = 12,356,936.93
  5. Step 5: Solve for x
    x = 12,356,936.93/3,947.37
  6. Step 6: Final answer
    x = 3,130.42

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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.