Home / 2,947.48-4,067.56-1,621.24

Finding the Fourth Proportional to 2,947.48, 4,067.56 and 1,621.24

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Solution

The fourth proportional to 2,947.48, 4,067.56 and 1,621.24 is: 2,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.48 : 4,067.56 = 1,621.24 : x
  2. Step 2: Convert to fraction form
    2,947.48/4,067.56 = 1,621.24/x
  3. Step 3: Cross multiply
    2,947.48x = 4,067.56 × 1,621.24
  4. Step 4: Simplify right side
    2,947.48x = 6,594,490.97
  5. Step 5: Solve for x
    x = 6,594,490.97/2,947.48
  6. Step 6: Final answer
    x = 2,237.33

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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.