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Finding the Fourth Proportional to 6,609.93, 9,914.84 and 1,679.50

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Solution

The fourth proportional to 6,609.93, 9,914.84 and 1,679.50 is: 2,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.93 : 9,914.84 = 1,679.50 : x
  2. Step 2: Convert to fraction form
    6,609.93/9,914.84 = 1,679.50/x
  3. Step 3: Cross multiply
    6,609.93x = 9,914.84 × 1,679.50
  4. Step 4: Simplify right side
    6,609.93x = 16,651,973.78
  5. Step 5: Solve for x
    x = 16,651,973.78/6,609.93
  6. Step 6: Final answer
    x = 2,519.24

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.