Home / 1,975.25-2,725.70-1,091.07

Finding the Fourth Proportional to 1,975.25, 2,725.70 and 1,091.07

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Solution

The fourth proportional to 1,975.25, 2,725.70 and 1,091.07 is: 1,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.25 : 2,725.70 = 1,091.07 : x
  2. Step 2: Convert to fraction form
    1,975.25/2,725.70 = 1,091.07/x
  3. Step 3: Cross multiply
    1,975.25x = 2,725.70 × 1,091.07
  4. Step 4: Simplify right side
    1,975.25x = 2,973,930.18
  5. Step 5: Solve for x
    x = 2,973,930.18/1,975.25
  6. Step 6: Final answer
    x = 1,505.60

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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.