Home / 2,689.65-3,711.65-1,510.79

Finding the Fourth Proportional to 2,689.65, 3,711.65 and 1,510.79

Calculator

Solution

The fourth proportional to 2,689.65, 3,711.65 and 1,510.79 is: 2,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.65 : 3,711.65 = 1,510.79 : x
  2. Step 2: Convert to fraction form
    2,689.65/3,711.65 = 1,510.79/x
  3. Step 3: Cross multiply
    2,689.65x = 3,711.65 × 1,510.79
  4. Step 4: Simplify right side
    2,689.65x = 5,607,525.43
  5. Step 5: Solve for x
    x = 5,607,525.43/2,689.65
  6. Step 6: Final answer
    x = 2,084.85

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.