Home / 1,871.24-2,581.27-1,312.54

Finding the Fourth Proportional to 1,871.24, 2,581.27 and 1,312.54

Calculator

Solution

The fourth proportional to 1,871.24, 2,581.27 and 1,312.54 is: 1,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.24 : 2,581.27 = 1,312.54 : x
  2. Step 2: Convert to fraction form
    1,871.24/2,581.27 = 1,312.54/x
  3. Step 3: Cross multiply
    1,871.24x = 2,581.27 × 1,312.54
  4. Step 4: Simplify right side
    1,871.24x = 3,388,010.39
  5. Step 5: Solve for x
    x = 3,388,010.39/1,871.24
  6. Step 6: Final answer
    x = 1,810.57

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.