Home / 2,783.88-3,838.08-1,996.56

Finding the Fourth Proportional to 2,783.88, 3,838.08 and 1,996.56

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Solution

The fourth proportional to 2,783.88, 3,838.08 and 1,996.56 is: 2,752.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.88 : 3,838.08 = 1,996.56 : x
  2. Step 2: Convert to fraction form
    2,783.88/3,838.08 = 1,996.56/x
  3. Step 3: Cross multiply
    2,783.88x = 3,838.08 × 1,996.56
  4. Step 4: Simplify right side
    2,783.88x = 7,662,957.00
  5. Step 5: Solve for x
    x = 7,662,957.00/2,783.88
  6. Step 6: Final answer
    x = 2,752.62

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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.