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Finding the Fourth Proportional to 6,379.42, 9,569.14 and 1,996.89

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Solution

The fourth proportional to 6,379.42, 9,569.14 and 1,996.89 is: 2,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.42 : 9,569.14 = 1,996.89 : x
  2. Step 2: Convert to fraction form
    6,379.42/9,569.14 = 1,996.89/x
  3. Step 3: Cross multiply
    6,379.42x = 9,569.14 × 1,996.89
  4. Step 4: Simplify right side
    6,379.42x = 19,108,519.97
  5. Step 5: Solve for x
    x = 19,108,519.97/6,379.42
  6. Step 6: Final answer
    x = 2,995.34

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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.