Home / 1,361.12-1,867.73-1,236.38

Finding the Fourth Proportional to 1,361.12, 1,867.73 and 1,236.38

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Solution

The fourth proportional to 1,361.12, 1,867.73 and 1,236.38 is: 1,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.12 : 1,867.73 = 1,236.38 : x
  2. Step 2: Convert to fraction form
    1,361.12/1,867.73 = 1,236.38/x
  3. Step 3: Cross multiply
    1,361.12x = 1,867.73 × 1,236.38
  4. Step 4: Simplify right side
    1,361.12x = 2,309,208.50
  5. Step 5: Solve for x
    x = 2,309,208.50/1,361.12
  6. Step 6: Final answer
    x = 1,696.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.