Home / 2,440.12-3,367.36-1,321.05

Finding the Fourth Proportional to 2,440.12, 3,367.36 and 1,321.05

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Solution

The fourth proportional to 2,440.12, 3,367.36 and 1,321.05 is: 1,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.12 : 3,367.36 = 1,321.05 : x
  2. Step 2: Convert to fraction form
    2,440.12/3,367.36 = 1,321.05/x
  3. Step 3: Cross multiply
    2,440.12x = 3,367.36 × 1,321.05
  4. Step 4: Simplify right side
    2,440.12x = 4,448,450.93
  5. Step 5: Solve for x
    x = 4,448,450.93/2,440.12
  6. Step 6: Final answer
    x = 1,823.05

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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.