Home / 1,415.33-1,953.17-855.70

Finding the Fourth Proportional to 1,415.33, 1,953.17 and 855.70

Calculator

Solution

The fourth proportional to 1,415.33, 1,953.17 and 855.70 is: 1,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.33 : 1,953.17 = 855.70 : x
  2. Step 2: Convert to fraction form
    1,415.33/1,953.17 = 855.70/x
  3. Step 3: Cross multiply
    1,415.33x = 1,953.17 × 855.70
  4. Step 4: Simplify right side
    1,415.33x = 1,671,324.83
  5. Step 5: Solve for x
    x = 1,671,324.83/1,415.33
  6. Step 6: Final answer
    x = 1,180.88

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.