Home / 1,520.74-2,284.55-1,313.15

Finding the Fourth Proportional to 1,520.74, 2,284.55 and 1,313.15

Calculator

Solution

The fourth proportional to 1,520.74, 2,284.55 and 1,313.15 is: 1,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.74 : 2,284.55 = 1,313.15 : x
  2. Step 2: Convert to fraction form
    1,520.74/2,284.55 = 1,313.15/x
  3. Step 3: Cross multiply
    1,520.74x = 2,284.55 × 1,313.15
  4. Step 4: Simplify right side
    1,520.74x = 2,999,951.15
  5. Step 5: Solve for x
    x = 2,999,951.15/1,520.74
  6. Step 6: Final answer
    x = 1,972.69

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.