Home / 1,236.13-1,705.85-712.33

Finding the Fourth Proportional to 1,236.13, 1,705.85 and 712.33

Calculator

Solution

The fourth proportional to 1,236.13, 1,705.85 and 712.33 is: 983.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.13 : 1,705.85 = 712.33 : x
  2. Step 2: Convert to fraction form
    1,236.13/1,705.85 = 712.33/x
  3. Step 3: Cross multiply
    1,236.13x = 1,705.85 × 712.33
  4. Step 4: Simplify right side
    1,236.13x = 1,215,128.13
  5. Step 5: Solve for x
    x = 1,215,128.13/1,236.13
  6. Step 6: Final answer
    x = 983.01

Related Problems

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.