Home / 2,947.42-4,067.52-1,621.14

Finding the Fourth Proportional to 2,947.42, 4,067.52 and 1,621.14

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Solution

The fourth proportional to 2,947.42, 4,067.52 and 1,621.14 is: 2,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.42 : 4,067.52 = 1,621.14 : x
  2. Step 2: Convert to fraction form
    2,947.42/4,067.52 = 1,621.14/x
  3. Step 3: Cross multiply
    2,947.42x = 4,067.52 × 1,621.14
  4. Step 4: Simplify right side
    2,947.42x = 6,594,019.37
  5. Step 5: Solve for x
    x = 6,594,019.37/2,947.42
  6. Step 6: Final answer
    x = 2,237.22

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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.