Home / 2,861.23-4,290.82-1,012.40

Finding the Fourth Proportional to 2,861.23, 4,290.82 and 1,012.40

Calculator

Solution

The fourth proportional to 2,861.23, 4,290.82 and 1,012.40 is: 1,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.23 : 4,290.82 = 1,012.40 : x
  2. Step 2: Convert to fraction form
    2,861.23/4,290.82 = 1,012.40/x
  3. Step 3: Cross multiply
    2,861.23x = 4,290.82 × 1,012.40
  4. Step 4: Simplify right side
    2,861.23x = 4,344,026.17
  5. Step 5: Solve for x
    x = 4,344,026.17/2,861.23
  6. Step 6: Final answer
    x = 1,518.24

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.