Home / 3,876.45-5,347.76-2,383.83

Finding the Fourth Proportional to 3,876.45, 5,347.76 and 2,383.83

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Solution

The fourth proportional to 3,876.45, 5,347.76 and 2,383.83 is: 3,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.45 : 5,347.76 = 2,383.83 : x
  2. Step 2: Convert to fraction form
    3,876.45/5,347.76 = 2,383.83/x
  3. Step 3: Cross multiply
    3,876.45x = 5,347.76 × 2,383.83
  4. Step 4: Simplify right side
    3,876.45x = 12,748,138.80
  5. Step 5: Solve for x
    x = 12,748,138.80/3,876.45
  6. Step 6: Final answer
    x = 3,288.61

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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.