Home / 5,408.65-8,111.80-1,711.18

Finding the Fourth Proportional to 5,408.65, 8,111.80 and 1,711.18

Calculator

Solution

The fourth proportional to 5,408.65, 8,111.80 and 1,711.18 is: 2,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.65 : 8,111.80 = 1,711.18 : x
  2. Step 2: Convert to fraction form
    5,408.65/8,111.80 = 1,711.18/x
  3. Step 3: Cross multiply
    5,408.65x = 8,111.80 × 1,711.18
  4. Step 4: Simplify right side
    5,408.65x = 13,880,749.92
  5. Step 5: Solve for x
    x = 13,880,749.92/5,408.65
  6. Step 6: Final answer
    x = 2,566.40

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.