Home / 5,653.92-8,478.72-2,190.72

Finding the Fourth Proportional to 5,653.92, 8,478.72 and 2,190.72

Calculator

Solution

The fourth proportional to 5,653.92, 8,478.72 and 2,190.72 is: 3,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.92 : 8,478.72 = 2,190.72 : x
  2. Step 2: Convert to fraction form
    5,653.92/8,478.72 = 2,190.72/x
  3. Step 3: Cross multiply
    5,653.92x = 8,478.72 × 2,190.72
  4. Step 4: Simplify right side
    5,653.92x = 18,574,501.48
  5. Step 5: Solve for x
    x = 18,574,501.48/5,653.92
  6. Step 6: Final answer
    x = 3,285.24

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.