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Finding the Fourth Proportional to 6,949, 10,421.86 and 2,267.80

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Solution

The fourth proportional to 6,949, 10,421.86 and 2,267.80 is: 3,401.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949 : 10,421.86 = 2,267.80 : x
  2. Step 2: Convert to fraction form
    6,949/10,421.86 = 2,267.80/x
  3. Step 3: Cross multiply
    6,949x = 10,421.86 × 2,267.80
  4. Step 4: Simplify right side
    6,949x = 23,634,694.11
  5. Step 5: Solve for x
    x = 23,634,694.11/6,949
  6. Step 6: Final answer
    x = 3,401.16

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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.