Home / 2,180.49-3,008.79-1,236.33

Finding the Fourth Proportional to 2,180.49, 3,008.79 and 1,236.33

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Solution

The fourth proportional to 2,180.49, 3,008.79 and 1,236.33 is: 1,705.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.49 : 3,008.79 = 1,236.33 : x
  2. Step 2: Convert to fraction form
    2,180.49/3,008.79 = 1,236.33/x
  3. Step 3: Cross multiply
    2,180.49x = 3,008.79 × 1,236.33
  4. Step 4: Simplify right side
    2,180.49x = 3,719,857.34
  5. Step 5: Solve for x
    x = 3,719,857.34/2,180.49
  6. Step 6: Final answer
    x = 1,705.97

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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.