Home / 6,609.69-9,121.66-3,956.59

Finding the Fourth Proportional to 6,609.69, 9,121.66 and 3,956.59

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Solution

The fourth proportional to 6,609.69, 9,121.66 and 3,956.59 is: 5,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.69 : 9,121.66 = 3,956.59 : x
  2. Step 2: Convert to fraction form
    6,609.69/9,121.66 = 3,956.59/x
  3. Step 3: Cross multiply
    6,609.69x = 9,121.66 × 3,956.59
  4. Step 4: Simplify right side
    6,609.69x = 36,090,618.94
  5. Step 5: Solve for x
    x = 36,090,618.94/6,609.69
  6. Step 6: Final answer
    x = 5,460.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.