Home / 3,416.20-5,129.70-2,325.40

Finding the Fourth Proportional to 3,416.20, 5,129.70 and 2,325.40

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Solution

The fourth proportional to 3,416.20, 5,129.70 and 2,325.40 is: 3,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.20 : 5,129.70 = 2,325.40 : x
  2. Step 2: Convert to fraction form
    3,416.20/5,129.70 = 2,325.40/x
  3. Step 3: Cross multiply
    3,416.20x = 5,129.70 × 2,325.40
  4. Step 4: Simplify right side
    3,416.20x = 11,928,604.38
  5. Step 5: Solve for x
    x = 11,928,604.38/3,416.20
  6. Step 6: Final answer
    x = 3,491.78

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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.