Home / 3,416.29-5,120.79-2,439.43

Finding the Fourth Proportional to 3,416.29, 5,120.79 and 2,439.43

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Solution

The fourth proportional to 3,416.29, 5,120.79 and 2,439.43 is: 3,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.29 : 5,120.79 = 2,439.43 : x
  2. Step 2: Convert to fraction form
    3,416.29/5,120.79 = 2,439.43/x
  3. Step 3: Cross multiply
    3,416.29x = 5,120.79 × 2,439.43
  4. Step 4: Simplify right side
    3,416.29x = 12,491,808.75
  5. Step 5: Solve for x
    x = 12,491,808.75/3,416.29
  6. Step 6: Final answer
    x = 3,656.54

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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.