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Finding the Fourth Proportional to 7,379.66, 11,069.80 and 2,449.72

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Solution

The fourth proportional to 7,379.66, 11,069.80 and 2,449.72 is: 3,674.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.66 : 11,069.80 = 2,449.72 : x
  2. Step 2: Convert to fraction form
    7,379.66/11,069.80 = 2,449.72/x
  3. Step 3: Cross multiply
    7,379.66x = 11,069.80 × 2,449.72
  4. Step 4: Simplify right side
    7,379.66x = 27,117,910.46
  5. Step 5: Solve for x
    x = 27,117,910.46/7,379.66
  6. Step 6: Final answer
    x = 3,674.68

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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.