Home / 7,857.05-11,783.06-2,591.07

Finding the Fourth Proportional to 7,857.05, 11,783.06 and 2,591.07

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Solution

The fourth proportional to 7,857.05, 11,783.06 and 2,591.07 is: 3,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.05 : 11,783.06 = 2,591.07 : x
  2. Step 2: Convert to fraction form
    7,857.05/11,783.06 = 2,591.07/x
  3. Step 3: Cross multiply
    7,857.05x = 11,783.06 × 2,591.07
  4. Step 4: Simplify right side
    7,857.05x = 30,530,720.32
  5. Step 5: Solve for x
    x = 30,530,720.32/7,857.05
  6. Step 6: Final answer
    x = 3,885.78

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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.