Home / 2,409.36-3,324.84-1,361.20

Finding the Fourth Proportional to 2,409.36, 3,324.84 and 1,361.20

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Solution

The fourth proportional to 2,409.36, 3,324.84 and 1,361.20 is: 1,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.36 : 3,324.84 = 1,361.20 : x
  2. Step 2: Convert to fraction form
    2,409.36/3,324.84 = 1,361.20/x
  3. Step 3: Cross multiply
    2,409.36x = 3,324.84 × 1,361.20
  4. Step 4: Simplify right side
    2,409.36x = 4,525,772.21
  5. Step 5: Solve for x
    x = 4,525,772.21/2,409.36
  6. Step 6: Final answer
    x = 1,878.41

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1.5x scale

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.