Home / 3,856.41-5,780.97-2,886.84

Finding the Fourth Proportional to 3,856.41, 5,780.97 and 2,886.84

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Solution

The fourth proportional to 3,856.41, 5,780.97 and 2,886.84 is: 4,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.41 : 5,780.97 = 2,886.84 : x
  2. Step 2: Convert to fraction form
    3,856.41/5,780.97 = 2,886.84/x
  3. Step 3: Cross multiply
    3,856.41x = 5,780.97 × 2,886.84
  4. Step 4: Simplify right side
    3,856.41x = 16,688,735.43
  5. Step 5: Solve for x
    x = 16,688,735.43/3,856.41
  6. Step 6: Final answer
    x = 4,327.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.