Home / 1,669.72-2,504.76-515.56

Finding the Fourth Proportional to 1,669.72, 2,504.76 and 515.56

Calculator

Solution

The fourth proportional to 1,669.72, 2,504.76 and 515.56 is: 773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.72 : 2,504.76 = 515.56 : x
  2. Step 2: Convert to fraction form
    1,669.72/2,504.76 = 515.56/x
  3. Step 3: Cross multiply
    1,669.72x = 2,504.76 × 515.56
  4. Step 4: Simplify right side
    1,669.72x = 1,291,354.07
  5. Step 5: Solve for x
    x = 1,291,354.07/1,669.72
  6. Step 6: Final answer
    x = 773.40

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.