Home / 2,847.35-3,928.13-1,727.90

Finding the Fourth Proportional to 2,847.35, 3,928.13 and 1,727.90

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Solution

The fourth proportional to 2,847.35, 3,928.13 and 1,727.90 is: 2,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.35 : 3,928.13 = 1,727.90 : x
  2. Step 2: Convert to fraction form
    2,847.35/3,928.13 = 1,727.90/x
  3. Step 3: Cross multiply
    2,847.35x = 3,928.13 × 1,727.90
  4. Step 4: Simplify right side
    2,847.35x = 6,787,408.76
  5. Step 5: Solve for x
    x = 6,787,408.76/2,847.35
  6. Step 6: Final answer
    x = 2,383.76

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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.