Home / 1,570.74-2,167.47-872.07

Finding the Fourth Proportional to 1,570.74, 2,167.47 and 872.07

Calculator

Solution

The fourth proportional to 1,570.74, 2,167.47 and 872.07 is: 1,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.74 : 2,167.47 = 872.07 : x
  2. Step 2: Convert to fraction form
    1,570.74/2,167.47 = 872.07/x
  3. Step 3: Cross multiply
    1,570.74x = 2,167.47 × 872.07
  4. Step 4: Simplify right side
    1,570.74x = 1,890,185.56
  5. Step 5: Solve for x
    x = 1,890,185.56/1,570.74
  6. Step 6: Final answer
    x = 1,203.37

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.