Home / 1,202.03-1,658.86-678.06

Finding the Fourth Proportional to 1,202.03, 1,658.86 and 678.06

Calculator

Solution

The fourth proportional to 1,202.03, 1,658.86 and 678.06 is: 935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.03 : 1,658.86 = 678.06 : x
  2. Step 2: Convert to fraction form
    1,202.03/1,658.86 = 678.06/x
  3. Step 3: Cross multiply
    1,202.03x = 1,658.86 × 678.06
  4. Step 4: Simplify right side
    1,202.03x = 1,124,807.37
  5. Step 5: Solve for x
    x = 1,124,807.37/1,202.03
  6. Step 6: Final answer
    x = 935.75

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.