Home / 2,109.39-3,176.69-1,838.75

Finding the Fourth Proportional to 2,109.39, 3,176.69 and 1,838.75

Calculator

Solution

The fourth proportional to 2,109.39, 3,176.69 and 1,838.75 is: 2,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.39 : 3,176.69 = 1,838.75 : x
  2. Step 2: Convert to fraction form
    2,109.39/3,176.69 = 1,838.75/x
  3. Step 3: Cross multiply
    2,109.39x = 3,176.69 × 1,838.75
  4. Step 4: Simplify right side
    2,109.39x = 5,841,147.04
  5. Step 5: Solve for x
    x = 5,841,147.04/2,109.39
  6. Step 6: Final answer
    x = 2,769.11

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.