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Finding the Fourth Proportional to 7,801.34, 11,699.58 and 2,606

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Solution

The fourth proportional to 7,801.34, 11,699.58 and 2,606 is: 3,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.34 : 11,699.58 = 2,606 : x
  2. Step 2: Convert to fraction form
    7,801.34/11,699.58 = 2,606/x
  3. Step 3: Cross multiply
    7,801.34x = 11,699.58 × 2,606
  4. Step 4: Simplify right side
    7,801.34x = 30,489,105.48
  5. Step 5: Solve for x
    x = 30,489,105.48/7,801.34
  6. Step 6: Final answer
    x = 3,908.19

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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.