Home / 1,921.26-2,867.52-1,767.36

Finding the Fourth Proportional to 1,921.26, 2,867.52 and 1,767.36

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Solution

The fourth proportional to 1,921.26, 2,867.52 and 1,767.36 is: 2,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.26 : 2,867.52 = 1,767.36 : x
  2. Step 2: Convert to fraction form
    1,921.26/2,867.52 = 1,767.36/x
  3. Step 3: Cross multiply
    1,921.26x = 2,867.52 × 1,767.36
  4. Step 4: Simplify right side
    1,921.26x = 5,067,940.15
  5. Step 5: Solve for x
    x = 5,067,940.15/1,921.26
  6. Step 6: Final answer
    x = 2,637.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.