Home / 2,947.71-4,067.73-1,621.41

Finding the Fourth Proportional to 2,947.71, 4,067.73 and 1,621.41

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Solution

The fourth proportional to 2,947.71, 4,067.73 and 1,621.41 is: 2,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.71 : 4,067.73 = 1,621.41 : x
  2. Step 2: Convert to fraction form
    2,947.71/4,067.73 = 1,621.41/x
  3. Step 3: Cross multiply
    2,947.71x = 4,067.73 × 1,621.41
  4. Step 4: Simplify right side
    2,947.71x = 6,595,458.10
  5. Step 5: Solve for x
    x = 6,595,458.10/2,947.71
  6. Step 6: Final answer
    x = 2,237.49

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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.