Home / 5,135.72-7,703.60-1,240.13

Finding the Fourth Proportional to 5,135.72, 7,703.60 and 1,240.13

Calculator

Solution

The fourth proportional to 5,135.72, 7,703.60 and 1,240.13 is: 1,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.72 : 7,703.60 = 1,240.13 : x
  2. Step 2: Convert to fraction form
    5,135.72/7,703.60 = 1,240.13/x
  3. Step 3: Cross multiply
    5,135.72x = 7,703.60 × 1,240.13
  4. Step 4: Simplify right side
    5,135.72x = 9,553,420.75
  5. Step 5: Solve for x
    x = 9,553,420.75/5,135.72
  6. Step 6: Final answer
    x = 1,860.19

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.