Home / 3,097.60-4,274.56-1,976.96

Finding the Fourth Proportional to 3,097.60, 4,274.56 and 1,976.96

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Solution

The fourth proportional to 3,097.60, 4,274.56 and 1,976.96 is: 2,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.60 : 4,274.56 = 1,976.96 : x
  2. Step 2: Convert to fraction form
    3,097.60/4,274.56 = 1,976.96/x
  3. Step 3: Cross multiply
    3,097.60x = 4,274.56 × 1,976.96
  4. Step 4: Simplify right side
    3,097.60x = 8,450,634.14
  5. Step 5: Solve for x
    x = 8,450,634.14/3,097.60
  6. Step 6: Final answer
    x = 2,728.12

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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.