Home / 1,567.82-2,163.59-869.19

Finding the Fourth Proportional to 1,567.82, 2,163.59 and 869.19

Calculator

Solution

The fourth proportional to 1,567.82, 2,163.59 and 869.19 is: 1,199.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.82 : 2,163.59 = 869.19 : x
  2. Step 2: Convert to fraction form
    1,567.82/2,163.59 = 869.19/x
  3. Step 3: Cross multiply
    1,567.82x = 2,163.59 × 869.19
  4. Step 4: Simplify right side
    1,567.82x = 1,880,566.45
  5. Step 5: Solve for x
    x = 1,880,566.45/1,567.82
  6. Step 6: Final answer
    x = 1,199.48

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.