Home / 3,857.46-5,786.70-1,259.52

Finding the Fourth Proportional to 3,857.46, 5,786.70 and 1,259.52

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Solution

The fourth proportional to 3,857.46, 5,786.70 and 1,259.52 is: 1,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.46 : 5,786.70 = 1,259.52 : x
  2. Step 2: Convert to fraction form
    3,857.46/5,786.70 = 1,259.52/x
  3. Step 3: Cross multiply
    3,857.46x = 5,786.70 × 1,259.52
  4. Step 4: Simplify right side
    3,857.46x = 7,288,464.38
  5. Step 5: Solve for x
    x = 7,288,464.38/3,857.46
  6. Step 6: Final answer
    x = 1,889.45

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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.