Home / 3,928.68-5,889.72-1,847.64

Finding the Fourth Proportional to 3,928.68, 5,889.72 and 1,847.64

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Solution

The fourth proportional to 3,928.68, 5,889.72 and 1,847.64 is: 2,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.68 : 5,889.72 = 1,847.64 : x
  2. Step 2: Convert to fraction form
    3,928.68/5,889.72 = 1,847.64/x
  3. Step 3: Cross multiply
    3,928.68x = 5,889.72 × 1,847.64
  4. Step 4: Simplify right side
    3,928.68x = 10,882,082.26
  5. Step 5: Solve for x
    x = 10,882,082.26/3,928.68
  6. Step 6: Final answer
    x = 2,769.91

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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.