Home / 926.84-1,390.20-277.56

Finding the Fourth Proportional to 926.84, 1,390.20 and 277.56

Calculator

Solution

The fourth proportional to 926.84, 1,390.20 and 277.56 is: 416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.84 : 1,390.20 = 277.56 : x
  2. Step 2: Convert to fraction form
    926.84/1,390.20 = 277.56/x
  3. Step 3: Cross multiply
    926.84x = 1,390.20 × 277.56
  4. Step 4: Simplify right side
    926.84x = 385,863.91
  5. Step 5: Solve for x
    x = 385,863.91/926.84
  6. Step 6: Final answer
    x = 416.32

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.