Home / 1,975.30-2,725.81-1,091.08

Finding the Fourth Proportional to 1,975.30, 2,725.81 and 1,091.08

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Solution

The fourth proportional to 1,975.30, 2,725.81 and 1,091.08 is: 1,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.30 : 2,725.81 = 1,091.08 : x
  2. Step 2: Convert to fraction form
    1,975.30/2,725.81 = 1,091.08/x
  3. Step 3: Cross multiply
    1,975.30x = 2,725.81 × 1,091.08
  4. Step 4: Simplify right side
    1,975.30x = 2,974,067.23
  5. Step 5: Solve for x
    x = 2,974,067.23/1,975.30
  6. Step 6: Final answer
    x = 1,505.63

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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.