Home / 3,124.40-4,682.95-1,389.38

Finding the Fourth Proportional to 3,124.40, 4,682.95 and 1,389.38

Calculator

Solution

The fourth proportional to 3,124.40, 4,682.95 and 1,389.38 is: 2,082.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.40 : 4,682.95 = 1,389.38 : x
  2. Step 2: Convert to fraction form
    3,124.40/4,682.95 = 1,389.38/x
  3. Step 3: Cross multiply
    3,124.40x = 4,682.95 × 1,389.38
  4. Step 4: Simplify right side
    3,124.40x = 6,506,370.18
  5. Step 5: Solve for x
    x = 6,506,370.18/3,124.40
  6. Step 6: Final answer
    x = 2,082.44

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.