Home / 2,192.75-3,025.49-1,308.38

Finding the Fourth Proportional to 2,192.75, 3,025.49 and 1,308.38

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Solution

The fourth proportional to 2,192.75, 3,025.49 and 1,308.38 is: 1,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.75 : 3,025.49 = 1,308.38 : x
  2. Step 2: Convert to fraction form
    2,192.75/3,025.49 = 1,308.38/x
  3. Step 3: Cross multiply
    2,192.75x = 3,025.49 × 1,308.38
  4. Step 4: Simplify right side
    2,192.75x = 3,958,475.48
  5. Step 5: Solve for x
    x = 3,958,475.48/2,192.75
  6. Step 6: Final answer
    x = 1,805.26

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1.5x scale

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.