Home / 2,274.45-3,137.16-1,390.68

Finding the Fourth Proportional to 2,274.45, 3,137.16 and 1,390.68

Calculator

Solution

The fourth proportional to 2,274.45, 3,137.16 and 1,390.68 is: 1,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.45 : 3,137.16 = 1,390.68 : x
  2. Step 2: Convert to fraction form
    2,274.45/3,137.16 = 1,390.68/x
  3. Step 3: Cross multiply
    2,274.45x = 3,137.16 × 1,390.68
  4. Step 4: Simplify right side
    2,274.45x = 4,362,785.67
  5. Step 5: Solve for x
    x = 4,362,785.67/2,274.45
  6. Step 6: Final answer
    x = 1,918.17

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.