Home / 3,805.82-5,708.74-1,857.50

Finding the Fourth Proportional to 3,805.82, 5,708.74 and 1,857.50

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Solution

The fourth proportional to 3,805.82, 5,708.74 and 1,857.50 is: 2,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.82 : 5,708.74 = 1,857.50 : x
  2. Step 2: Convert to fraction form
    3,805.82/5,708.74 = 1,857.50/x
  3. Step 3: Cross multiply
    3,805.82x = 5,708.74 × 1,857.50
  4. Step 4: Simplify right side
    3,805.82x = 10,603,984.55
  5. Step 5: Solve for x
    x = 10,603,984.55/3,805.82
  6. Step 6: Final answer
    x = 2,786.25

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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.