Home / 3,860.82-5,328.14-2,182.29

Finding the Fourth Proportional to 3,860.82, 5,328.14 and 2,182.29

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Solution

The fourth proportional to 3,860.82, 5,328.14 and 2,182.29 is: 3,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.82 : 5,328.14 = 2,182.29 : x
  2. Step 2: Convert to fraction form
    3,860.82/5,328.14 = 2,182.29/x
  3. Step 3: Cross multiply
    3,860.82x = 5,328.14 × 2,182.29
  4. Step 4: Simplify right side
    3,860.82x = 11,627,546.64
  5. Step 5: Solve for x
    x = 11,627,546.64/3,860.82
  6. Step 6: Final answer
    x = 3,011.68

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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.