Home / 1,151.92-1,589.70-709.48

Finding the Fourth Proportional to 1,151.92, 1,589.70 and 709.48

Calculator

Solution

The fourth proportional to 1,151.92, 1,589.70 and 709.48 is: 979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.92 : 1,589.70 = 709.48 : x
  2. Step 2: Convert to fraction form
    1,151.92/1,589.70 = 709.48/x
  3. Step 3: Cross multiply
    1,151.92x = 1,589.70 × 709.48
  4. Step 4: Simplify right side
    1,151.92x = 1,127,860.36
  5. Step 5: Solve for x
    x = 1,127,860.36/1,151.92
  6. Step 6: Final answer
    x = 979.11

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.