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Finding the Fourth Proportional to 8,805.77, 13,209.06 and 3,608

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Solution

The fourth proportional to 8,805.77, 13,209.06 and 3,608 is: 5,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.77 : 13,209.06 = 3,608 : x
  2. Step 2: Convert to fraction form
    8,805.77/13,209.06 = 3,608/x
  3. Step 3: Cross multiply
    8,805.77x = 13,209.06 × 3,608
  4. Step 4: Simplify right side
    8,805.77x = 47,658,288.48
  5. Step 5: Solve for x
    x = 47,658,288.48/8,805.77
  6. Step 6: Final answer
    x = 5,412.17

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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.