Home / 2,947.49-4,067.52-1,621.28

Finding the Fourth Proportional to 2,947.49, 4,067.52 and 1,621.28

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Solution

The fourth proportional to 2,947.49, 4,067.52 and 1,621.28 is: 2,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.49 : 4,067.52 = 1,621.28 : x
  2. Step 2: Convert to fraction form
    2,947.49/4,067.52 = 1,621.28/x
  3. Step 3: Cross multiply
    2,947.49x = 4,067.52 × 1,621.28
  4. Step 4: Simplify right side
    2,947.49x = 6,594,568.49
  5. Step 5: Solve for x
    x = 6,594,568.49/2,947.49
  6. Step 6: Final answer
    x = 2,237.35

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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.