Home / 1,125.60-1,688.38-577.46

Finding the Fourth Proportional to 1,125.60, 1,688.38 and 577.46

Calculator

Solution

The fourth proportional to 1,125.60, 1,688.38 and 577.46 is: 866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.60 : 1,688.38 = 577.46 : x
  2. Step 2: Convert to fraction form
    1,125.60/1,688.38 = 577.46/x
  3. Step 3: Cross multiply
    1,125.60x = 1,688.38 × 577.46
  4. Step 4: Simplify right side
    1,125.60x = 974,974.69
  5. Step 5: Solve for x
    x = 974,974.69/1,125.60
  6. Step 6: Final answer
    x = 866.19

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.