Home / 1,515.93-2,270.29-856.18

Finding the Fourth Proportional to 1,515.93, 2,270.29 and 856.18

Calculator

Solution

The fourth proportional to 1,515.93, 2,270.29 and 856.18 is: 1,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.93 : 2,270.29 = 856.18 : x
  2. Step 2: Convert to fraction form
    1,515.93/2,270.29 = 856.18/x
  3. Step 3: Cross multiply
    1,515.93x = 2,270.29 × 856.18
  4. Step 4: Simplify right side
    1,515.93x = 1,943,776.89
  5. Step 5: Solve for x
    x = 1,943,776.89/1,515.93
  6. Step 6: Final answer
    x = 1,282.23

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.