Home / 1,981.62-2,734.28-1,282.59

Finding the Fourth Proportional to 1,981.62, 2,734.28 and 1,282.59

Calculator

Solution

The fourth proportional to 1,981.62, 2,734.28 and 1,282.59 is: 1,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.62 : 2,734.28 = 1,282.59 : x
  2. Step 2: Convert to fraction form
    1,981.62/2,734.28 = 1,282.59/x
  3. Step 3: Cross multiply
    1,981.62x = 2,734.28 × 1,282.59
  4. Step 4: Simplify right side
    1,981.62x = 3,506,953.77
  5. Step 5: Solve for x
    x = 3,506,953.77/1,981.62
  6. Step 6: Final answer
    x = 1,769.74

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.