Home / 3,284.96-4,921.86-1,983.70

Finding the Fourth Proportional to 3,284.96, 4,921.86 and 1,983.70

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Solution

The fourth proportional to 3,284.96, 4,921.86 and 1,983.70 is: 2,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,284.96 : 4,921.86 = 1,983.70 : x
  2. Step 2: Convert to fraction form
    3,284.96/4,921.86 = 1,983.70/x
  3. Step 3: Cross multiply
    3,284.96x = 4,921.86 × 1,983.70
  4. Step 4: Simplify right side
    3,284.96x = 9,763,493.68
  5. Step 5: Solve for x
    x = 9,763,493.68/3,284.96
  6. Step 6: Final answer
    x = 2,972.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.