Home / 3,419.28-5,133.12-3,247.12

Finding the Fourth Proportional to 3,419.28, 5,133.12 and 3,247.12

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Solution

The fourth proportional to 3,419.28, 5,133.12 and 3,247.12 is: 4,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.28 : 5,133.12 = 3,247.12 : x
  2. Step 2: Convert to fraction form
    3,419.28/5,133.12 = 3,247.12/x
  3. Step 3: Cross multiply
    3,419.28x = 5,133.12 × 3,247.12
  4. Step 4: Simplify right side
    3,419.28x = 16,667,856.61
  5. Step 5: Solve for x
    x = 16,667,856.61/3,419.28
  6. Step 6: Final answer
    x = 4,874.67

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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.