Home / 1,384.09-1,910.05-824.45

Finding the Fourth Proportional to 1,384.09, 1,910.05 and 824.45

Calculator

Solution

The fourth proportional to 1,384.09, 1,910.05 and 824.45 is: 1,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.09 : 1,910.05 = 824.45 : x
  2. Step 2: Convert to fraction form
    1,384.09/1,910.05 = 824.45/x
  3. Step 3: Cross multiply
    1,384.09x = 1,910.05 × 824.45
  4. Step 4: Simplify right side
    1,384.09x = 1,574,729.11
  5. Step 5: Solve for x
    x = 1,574,729.11/1,384.09
  6. Step 6: Final answer
    x = 1,137.74

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.