Home / 1,266.64-1,747.17-768.79

Finding the Fourth Proportional to 1,266.64, 1,747.17 and 768.79

Calculator

Solution

The fourth proportional to 1,266.64, 1,747.17 and 768.79 is: 1,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.64 : 1,747.17 = 768.79 : x
  2. Step 2: Convert to fraction form
    1,266.64/1,747.17 = 768.79/x
  3. Step 3: Cross multiply
    1,266.64x = 1,747.17 × 768.79
  4. Step 4: Simplify right side
    1,266.64x = 1,343,209.01
  5. Step 5: Solve for x
    x = 1,343,209.01/1,266.64
  6. Step 6: Final answer
    x = 1,060.45

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.