Home / 3,780.52-5,217.78-2,383.72

Finding the Fourth Proportional to 3,780.52, 5,217.78 and 2,383.72

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Solution

The fourth proportional to 3,780.52, 5,217.78 and 2,383.72 is: 3,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.52 : 5,217.78 = 2,383.72 : x
  2. Step 2: Convert to fraction form
    3,780.52/5,217.78 = 2,383.72/x
  3. Step 3: Cross multiply
    3,780.52x = 5,217.78 × 2,383.72
  4. Step 4: Simplify right side
    3,780.52x = 12,437,726.54
  5. Step 5: Solve for x
    x = 12,437,726.54/3,780.52
  6. Step 6: Final answer
    x = 3,289.95

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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.