Home / 2,947.56-4,067.67-1,621.25

Finding the Fourth Proportional to 2,947.56, 4,067.67 and 1,621.25

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Solution

The fourth proportional to 2,947.56, 4,067.67 and 1,621.25 is: 2,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.56 : 4,067.67 = 1,621.25 : x
  2. Step 2: Convert to fraction form
    2,947.56/4,067.67 = 1,621.25/x
  3. Step 3: Cross multiply
    2,947.56x = 4,067.67 × 1,621.25
  4. Step 4: Simplify right side
    2,947.56x = 6,594,689.65
  5. Step 5: Solve for x
    x = 6,594,689.65/2,947.56
  6. Step 6: Final answer
    x = 2,237.34

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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.