Home / 3,809.12-5,709.68-1,858.64

Finding the Fourth Proportional to 3,809.12, 5,709.68 and 1,858.64

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Solution

The fourth proportional to 3,809.12, 5,709.68 and 1,858.64 is: 2,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.12 : 5,709.68 = 1,858.64 : x
  2. Step 2: Convert to fraction form
    3,809.12/5,709.68 = 1,858.64/x
  3. Step 3: Cross multiply
    3,809.12x = 5,709.68 × 1,858.64
  4. Step 4: Simplify right side
    3,809.12x = 10,612,239.64
  5. Step 5: Solve for x
    x = 10,612,239.64/3,809.12
  6. Step 6: Final answer
    x = 2,786.01

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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.