Home / 6,529.40-9,786.90-3,609.80

Finding the Fourth Proportional to 6,529.40, 9,786.90 and 3,609.80

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Solution

The fourth proportional to 6,529.40, 9,786.90 and 3,609.80 is: 5,410.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,529.40 : 9,786.90 = 3,609.80 : x
  2. Step 2: Convert to fraction form
    6,529.40/9,786.90 = 3,609.80/x
  3. Step 3: Cross multiply
    6,529.40x = 9,786.90 × 3,609.80
  4. Step 4: Simplify right side
    6,529.40x = 35,328,751.62
  5. Step 5: Solve for x
    x = 35,328,751.62/6,529.40
  6. Step 6: Final answer
    x = 5,410.72

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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.