Home / 1,241.60-1,858.74-829.71

Finding the Fourth Proportional to 1,241.60, 1,858.74 and 829.71

Calculator

Solution

The fourth proportional to 1,241.60, 1,858.74 and 829.71 is: 1,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.60 : 1,858.74 = 829.71 : x
  2. Step 2: Convert to fraction form
    1,241.60/1,858.74 = 829.71/x
  3. Step 3: Cross multiply
    1,241.60x = 1,858.74 × 829.71
  4. Step 4: Simplify right side
    1,241.60x = 1,542,215.17
  5. Step 5: Solve for x
    x = 1,542,215.17/1,241.60
  6. Step 6: Final answer
    x = 1,242.12

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.