Home / 1,110.78-1,533.02-668.93

Finding the Fourth Proportional to 1,110.78, 1,533.02 and 668.93

Calculator

Solution

The fourth proportional to 1,110.78, 1,533.02 and 668.93 is: 923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.78 : 1,533.02 = 668.93 : x
  2. Step 2: Convert to fraction form
    1,110.78/1,533.02 = 668.93/x
  3. Step 3: Cross multiply
    1,110.78x = 1,533.02 × 668.93
  4. Step 4: Simplify right side
    1,110.78x = 1,025,472.06
  5. Step 5: Solve for x
    x = 1,025,472.06/1,110.78
  6. Step 6: Final answer
    x = 923.20

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.