Home / 2,731.52-4,098-783.88

Finding the Fourth Proportional to 2,731.52, 4,098 and 783.88

Calculator

Solution

The fourth proportional to 2,731.52, 4,098 and 783.88 is: 1,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.52 : 4,098 = 783.88 : x
  2. Step 2: Convert to fraction form
    2,731.52/4,098 = 783.88/x
  3. Step 3: Cross multiply
    2,731.52x = 4,098 × 783.88
  4. Step 4: Simplify right side
    2,731.52x = 3,212,340.24
  5. Step 5: Solve for x
    x = 3,212,340.24/2,731.52
  6. Step 6: Final answer
    x = 1,176.03

Related Problems

Find fourth proportional to 1,365.76, 2,049 and 391.94
Half scale
Find fourth proportional to 5,463.04, 8,196 and 1,567.76
Double scale
Find fourth proportional to 2,732.52, 4,099.50 and 784.88
Similar ratio
Find fourth proportional to 4,097.28, 6,147 and 1,175.82
1.5x scale

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.