Home / 2,155.17-2,974.61-1,369.07

Finding the Fourth Proportional to 2,155.17, 2,974.61 and 1,369.07

Calculator

Solution

The fourth proportional to 2,155.17, 2,974.61 and 1,369.07 is: 1,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.17 : 2,974.61 = 1,369.07 : x
  2. Step 2: Convert to fraction form
    2,155.17/2,974.61 = 1,369.07/x
  3. Step 3: Cross multiply
    2,155.17x = 2,974.61 × 1,369.07
  4. Step 4: Simplify right side
    2,155.17x = 4,072,427.59
  5. Step 5: Solve for x
    x = 4,072,427.59/2,155.17
  6. Step 6: Final answer
    x = 1,889.61

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.