Home / 3,860.89-5,328.11-2,182.33

Finding the Fourth Proportional to 3,860.89, 5,328.11 and 2,182.33

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Solution

The fourth proportional to 3,860.89, 5,328.11 and 2,182.33 is: 3,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.89 : 5,328.11 = 2,182.33 : x
  2. Step 2: Convert to fraction form
    3,860.89/5,328.11 = 2,182.33/x
  3. Step 3: Cross multiply
    3,860.89x = 5,328.11 × 2,182.33
  4. Step 4: Simplify right side
    3,860.89x = 11,627,694.30
  5. Step 5: Solve for x
    x = 11,627,694.30/3,860.89
  6. Step 6: Final answer
    x = 3,011.66

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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.