Home / 7,930.45-11,897.04-2,665.97

Finding the Fourth Proportional to 7,930.45, 11,897.04 and 2,665.97

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Solution

The fourth proportional to 7,930.45, 11,897.04 and 2,665.97 is: 3,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.45 : 11,897.04 = 2,665.97 : x
  2. Step 2: Convert to fraction form
    7,930.45/11,897.04 = 2,665.97/x
  3. Step 3: Cross multiply
    7,930.45x = 11,897.04 × 2,665.97
  4. Step 4: Simplify right side
    7,930.45x = 31,717,191.47
  5. Step 5: Solve for x
    x = 31,717,191.47/7,930.45
  6. Step 6: Final answer
    x = 3,999.42

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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.