Home / 2,947.37-4,067.76-1,902.47

Finding the Fourth Proportional to 2,947.37, 4,067.76 and 1,902.47

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Solution

The fourth proportional to 2,947.37, 4,067.76 and 1,902.47 is: 2,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.37 : 4,067.76 = 1,902.47 : x
  2. Step 2: Convert to fraction form
    2,947.37/4,067.76 = 1,902.47/x
  3. Step 3: Cross multiply
    2,947.37x = 4,067.76 × 1,902.47
  4. Step 4: Simplify right side
    2,947.37x = 7,738,771.03
  5. Step 5: Solve for x
    x = 7,738,771.03/2,947.37
  6. Step 6: Final answer
    x = 2,625.66

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1.5x scale

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.