Home / 841.64-1,161.78-492.44

Finding the Fourth Proportional to 841.64, 1,161.78 and 492.44

Calculator

Solution

The fourth proportional to 841.64, 1,161.78 and 492.44 is: 679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.64 : 1,161.78 = 492.44 : x
  2. Step 2: Convert to fraction form
    841.64/1,161.78 = 492.44/x
  3. Step 3: Cross multiply
    841.64x = 1,161.78 × 492.44
  4. Step 4: Simplify right side
    841.64x = 572,106.94
  5. Step 5: Solve for x
    x = 572,106.94/841.64
  6. Step 6: Final answer
    x = 679.75

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.