Home / 7,129.40-10,694.10-3,229.26

Finding the Fourth Proportional to 7,129.40, 10,694.10 and 3,229.26

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Solution

The fourth proportional to 7,129.40, 10,694.10 and 3,229.26 is: 4,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.40 : 10,694.10 = 3,229.26 : x
  2. Step 2: Convert to fraction form
    7,129.40/10,694.10 = 3,229.26/x
  3. Step 3: Cross multiply
    7,129.40x = 10,694.10 × 3,229.26
  4. Step 4: Simplify right side
    7,129.40x = 34,534,029.37
  5. Step 5: Solve for x
    x = 34,534,029.37/7,129.40
  6. Step 6: Final answer
    x = 4,843.89

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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.