Home / 5,145.74-7,716.72-1,857.98

Finding the Fourth Proportional to 5,145.74, 7,716.72 and 1,857.98

Calculator

Solution

The fourth proportional to 5,145.74, 7,716.72 and 1,857.98 is: 2,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.74 : 7,716.72 = 1,857.98 : x
  2. Step 2: Convert to fraction form
    5,145.74/7,716.72 = 1,857.98/x
  3. Step 3: Cross multiply
    5,145.74x = 7,716.72 × 1,857.98
  4. Step 4: Simplify right side
    5,145.74x = 14,337,511.43
  5. Step 5: Solve for x
    x = 14,337,511.43/5,145.74
  6. Step 6: Final answer
    x = 2,786.29

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.