Home / 7,379.63-11,071.61-2,185.64

Finding the Fourth Proportional to 7,379.63, 11,071.61 and 2,185.64

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Solution

The fourth proportional to 7,379.63, 11,071.61 and 2,185.64 is: 3,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.63 : 11,071.61 = 2,185.64 : x
  2. Step 2: Convert to fraction form
    7,379.63/11,071.61 = 2,185.64/x
  3. Step 3: Cross multiply
    7,379.63x = 11,071.61 × 2,185.64
  4. Step 4: Simplify right side
    7,379.63x = 24,198,487.39
  5. Step 5: Solve for x
    x = 24,198,487.39/7,379.63
  6. Step 6: Final answer
    x = 3,279.09

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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.