Home / 1,230.88-1,845.60-743.64

Finding the Fourth Proportional to 1,230.88, 1,845.60 and 743.64

Calculator

Solution

The fourth proportional to 1,230.88, 1,845.60 and 743.64 is: 1,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.88 : 1,845.60 = 743.64 : x
  2. Step 2: Convert to fraction form
    1,230.88/1,845.60 = 743.64/x
  3. Step 3: Cross multiply
    1,230.88x = 1,845.60 × 743.64
  4. Step 4: Simplify right side
    1,230.88x = 1,372,461.98
  5. Step 5: Solve for x
    x = 1,372,461.98/1,230.88
  6. Step 6: Final answer
    x = 1,115.03

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.