Home / 6,609.23-9,120.84-3,956.75

Finding the Fourth Proportional to 6,609.23, 9,120.84 and 3,956.75

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Solution

The fourth proportional to 6,609.23, 9,120.84 and 3,956.75 is: 5,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.23 : 9,120.84 = 3,956.75 : x
  2. Step 2: Convert to fraction form
    6,609.23/9,120.84 = 3,956.75/x
  3. Step 3: Cross multiply
    6,609.23x = 9,120.84 × 3,956.75
  4. Step 4: Simplify right side
    6,609.23x = 36,088,883.67
  5. Step 5: Solve for x
    x = 36,088,883.67/6,609.23
  6. Step 6: Final answer
    x = 5,460.38

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Half scale
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Double scale
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Similar ratio
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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.