Home / 1,693.13-2,539.15-538.61

Finding the Fourth Proportional to 1,693.13, 2,539.15 and 538.61

Calculator

Solution

The fourth proportional to 1,693.13, 2,539.15 and 538.61 is: 807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.13 : 2,539.15 = 538.61 : x
  2. Step 2: Convert to fraction form
    1,693.13/2,539.15 = 538.61/x
  3. Step 3: Cross multiply
    1,693.13x = 2,539.15 × 538.61
  4. Step 4: Simplify right side
    1,693.13x = 1,367,611.58
  5. Step 5: Solve for x
    x = 1,367,611.58/1,693.13
  6. Step 6: Final answer
    x = 807.74

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.