Home / 3,928.68-5,896.90-2,885.76

Finding the Fourth Proportional to 3,928.68, 5,896.90 and 2,885.76

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Solution

The fourth proportional to 3,928.68, 5,896.90 and 2,885.76 is: 4,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.68 : 5,896.90 = 2,885.76 : x
  2. Step 2: Convert to fraction form
    3,928.68/5,896.90 = 2,885.76/x
  3. Step 3: Cross multiply
    3,928.68x = 5,896.90 × 2,885.76
  4. Step 4: Simplify right side
    3,928.68x = 17,017,027.37
  5. Step 5: Solve for x
    x = 17,017,027.37/3,928.68
  6. Step 6: Final answer
    x = 4,331.48

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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.