Home / 1,975.26-2,725.85-1,189.35

Finding the Fourth Proportional to 1,975.26, 2,725.85 and 1,189.35

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Solution

The fourth proportional to 1,975.26, 2,725.85 and 1,189.35 is: 1,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.26 : 2,725.85 = 1,189.35 : x
  2. Step 2: Convert to fraction form
    1,975.26/2,725.85 = 1,189.35/x
  3. Step 3: Cross multiply
    1,975.26x = 2,725.85 × 1,189.35
  4. Step 4: Simplify right side
    1,975.26x = 3,241,989.70
  5. Step 5: Solve for x
    x = 3,241,989.70/1,975.26
  6. Step 6: Final answer
    x = 1,641.30

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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.