Home / 1,557.42-2,335.36-765.84

Finding the Fourth Proportional to 1,557.42, 2,335.36 and 765.84

Calculator

Solution

The fourth proportional to 1,557.42, 2,335.36 and 765.84 is: 1,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.42 : 2,335.36 = 765.84 : x
  2. Step 2: Convert to fraction form
    1,557.42/2,335.36 = 765.84/x
  3. Step 3: Cross multiply
    1,557.42x = 2,335.36 × 765.84
  4. Step 4: Simplify right side
    1,557.42x = 1,788,512.10
  5. Step 5: Solve for x
    x = 1,788,512.10/1,557.42
  6. Step 6: Final answer
    x = 1,148.38

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.