Home / 3,947.93-5,447.95-2,268.15

Finding the Fourth Proportional to 3,947.93, 5,447.95 and 2,268.15

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Solution

The fourth proportional to 3,947.93, 5,447.95 and 2,268.15 is: 3,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.93 : 5,447.95 = 2,268.15 : x
  2. Step 2: Convert to fraction form
    3,947.93/5,447.95 = 2,268.15/x
  3. Step 3: Cross multiply
    3,947.93x = 5,447.95 × 2,268.15
  4. Step 4: Simplify right side
    3,947.93x = 12,356,767.79
  5. Step 5: Solve for x
    x = 12,356,767.79/3,947.93
  6. Step 6: Final answer
    x = 3,129.94

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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.