Home / 5,157-7,735.52-1,868.80

Finding the Fourth Proportional to 5,157, 7,735.52 and 1,868.80

Calculator

Solution

The fourth proportional to 5,157, 7,735.52 and 1,868.80 is: 2,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157 : 7,735.52 = 1,868.80 : x
  2. Step 2: Convert to fraction form
    5,157/7,735.52 = 1,868.80/x
  3. Step 3: Cross multiply
    5,157x = 7,735.52 × 1,868.80
  4. Step 4: Simplify right side
    5,157x = 14,456,139.78
  5. Step 5: Solve for x
    x = 14,456,139.78/5,157
  6. Step 6: Final answer
    x = 2,803.21

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.