Home / 1,511.09-2,085.39-847.98

Finding the Fourth Proportional to 1,511.09, 2,085.39 and 847.98

Calculator

Solution

The fourth proportional to 1,511.09, 2,085.39 and 847.98 is: 1,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.09 : 2,085.39 = 847.98 : x
  2. Step 2: Convert to fraction form
    1,511.09/2,085.39 = 847.98/x
  3. Step 3: Cross multiply
    1,511.09x = 2,085.39 × 847.98
  4. Step 4: Simplify right side
    1,511.09x = 1,768,369.01
  5. Step 5: Solve for x
    x = 1,768,369.01/1,511.09
  6. Step 6: Final answer
    x = 1,170.26

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.