Home / 1,686.81-2,528.60-531.75

Finding the Fourth Proportional to 1,686.81, 2,528.60 and 531.75

Calculator

Solution

The fourth proportional to 1,686.81, 2,528.60 and 531.75 is: 797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.81 : 2,528.60 = 531.75 : x
  2. Step 2: Convert to fraction form
    1,686.81/2,528.60 = 531.75/x
  3. Step 3: Cross multiply
    1,686.81x = 2,528.60 × 531.75
  4. Step 4: Simplify right side
    1,686.81x = 1,344,580.39
  5. Step 5: Solve for x
    x = 1,344,580.39/1,686.81
  6. Step 6: Final answer
    x = 797.11

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.