Home / 2,449.72-3,380.59-1,330.64

Finding the Fourth Proportional to 2,449.72, 3,380.59 and 1,330.64

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Solution

The fourth proportional to 2,449.72, 3,380.59 and 1,330.64 is: 1,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,449.72 : 3,380.59 = 1,330.64 : x
  2. Step 2: Convert to fraction form
    2,449.72/3,380.59 = 1,330.64/x
  3. Step 3: Cross multiply
    2,449.72x = 3,380.59 × 1,330.64
  4. Step 4: Simplify right side
    2,449.72x = 4,498,348.28
  5. Step 5: Solve for x
    x = 4,498,348.28/2,449.72
  6. Step 6: Final answer
    x = 1,836.27

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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.