Home / 3,860.88-5,328.23-2,182.36

Finding the Fourth Proportional to 3,860.88, 5,328.23 and 2,182.36

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Solution

The fourth proportional to 3,860.88, 5,328.23 and 2,182.36 is: 3,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.88 : 5,328.23 = 2,182.36 : x
  2. Step 2: Convert to fraction form
    3,860.88/5,328.23 = 2,182.36/x
  3. Step 3: Cross multiply
    3,860.88x = 5,328.23 × 2,182.36
  4. Step 4: Simplify right side
    3,860.88x = 11,628,105.11
  5. Step 5: Solve for x
    x = 11,628,105.11/3,860.88
  6. Step 6: Final answer
    x = 3,011.78

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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.