Home / 3,423.36-5,120.13-3,174.30

Finding the Fourth Proportional to 3,423.36, 5,120.13 and 3,174.30

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Solution

The fourth proportional to 3,423.36, 5,120.13 and 3,174.30 is: 4,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.36 : 5,120.13 = 3,174.30 : x
  2. Step 2: Convert to fraction form
    3,423.36/5,120.13 = 3,174.30/x
  3. Step 3: Cross multiply
    3,423.36x = 5,120.13 × 3,174.30
  4. Step 4: Simplify right side
    3,423.36x = 16,252,828.66
  5. Step 5: Solve for x
    x = 16,252,828.66/3,423.36
  6. Step 6: Final answer
    x = 4,747.62

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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.