Home / 2,961.97-4,086.94-1,783.11

Finding the Fourth Proportional to 2,961.97, 4,086.94 and 1,783.11

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Solution

The fourth proportional to 2,961.97, 4,086.94 and 1,783.11 is: 2,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.97 : 4,086.94 = 1,783.11 : x
  2. Step 2: Convert to fraction form
    2,961.97/4,086.94 = 1,783.11/x
  3. Step 3: Cross multiply
    2,961.97x = 4,086.94 × 1,783.11
  4. Step 4: Simplify right side
    2,961.97x = 7,287,477.79
  5. Step 5: Solve for x
    x = 7,287,477.79/2,961.97
  6. Step 6: Final answer
    x = 2,460.35

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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.