Home / 2,991.12-4,127.70-1,664.82

Finding the Fourth Proportional to 2,991.12, 4,127.70 and 1,664.82

Calculator

Solution

The fourth proportional to 2,991.12, 4,127.70 and 1,664.82 is: 2,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.12 : 4,127.70 = 1,664.82 : x
  2. Step 2: Convert to fraction form
    2,991.12/4,127.70 = 1,664.82/x
  3. Step 3: Cross multiply
    2,991.12x = 4,127.70 × 1,664.82
  4. Step 4: Simplify right side
    2,991.12x = 6,871,877.51
  5. Step 5: Solve for x
    x = 6,871,877.51/2,991.12
  6. Step 6: Final answer
    x = 2,297.43

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.