Home / 3,876.41-5,347.68-2,383.79

Finding the Fourth Proportional to 3,876.41, 5,347.68 and 2,383.79

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Solution

The fourth proportional to 3,876.41, 5,347.68 and 2,383.79 is: 3,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.41 : 5,347.68 = 2,383.79 : x
  2. Step 2: Convert to fraction form
    3,876.41/5,347.68 = 2,383.79/x
  3. Step 3: Cross multiply
    3,876.41x = 5,347.68 × 2,383.79
  4. Step 4: Simplify right side
    3,876.41x = 12,747,719.37
  5. Step 5: Solve for x
    x = 12,747,719.37/3,876.41
  6. Step 6: Final answer
    x = 3,288.54

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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.