Home / 753.28-1,129.48-266.16

Finding the Fourth Proportional to 753.28, 1,129.48 and 266.16

Calculator

Solution

The fourth proportional to 753.28, 1,129.48 and 266.16 is: 399.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.28 : 1,129.48 = 266.16 : x
  2. Step 2: Convert to fraction form
    753.28/1,129.48 = 266.16/x
  3. Step 3: Cross multiply
    753.28x = 1,129.48 × 266.16
  4. Step 4: Simplify right side
    753.28x = 300,622.40
  5. Step 5: Solve for x
    x = 300,622.40/753.28
  6. Step 6: Final answer
    x = 399.08

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.