Home / 5,105.50-7,656.35-1,817.71

Finding the Fourth Proportional to 5,105.50, 7,656.35 and 1,817.71

Calculator

Solution

The fourth proportional to 5,105.50, 7,656.35 and 1,817.71 is: 2,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.50 : 7,656.35 = 1,817.71 : x
  2. Step 2: Convert to fraction form
    5,105.50/7,656.35 = 1,817.71/x
  3. Step 3: Cross multiply
    5,105.50x = 7,656.35 × 1,817.71
  4. Step 4: Simplify right side
    5,105.50x = 13,916,985.68
  5. Step 5: Solve for x
    x = 13,916,985.68/5,105.50
  6. Step 6: Final answer
    x = 2,725.88

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.