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Finding the Fourth Proportional to 7,379.48, 11,069.10 and 3,486.68

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Solution

The fourth proportional to 7,379.48, 11,069.10 and 3,486.68 is: 5,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.48 : 11,069.10 = 3,486.68 : x
  2. Step 2: Convert to fraction form
    7,379.48/11,069.10 = 3,486.68/x
  3. Step 3: Cross multiply
    7,379.48x = 11,069.10 × 3,486.68
  4. Step 4: Simplify right side
    7,379.48x = 38,594,409.59
  5. Step 5: Solve for x
    x = 38,594,409.59/7,379.48
  6. Step 6: Final answer
    x = 5,229.96

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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.