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Finding the Fourth Proportional to 8,790, 13,185.04 and 2,634

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Solution

The fourth proportional to 8,790, 13,185.04 and 2,634 is: 3,951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790 : 13,185.04 = 2,634 : x
  2. Step 2: Convert to fraction form
    8,790/13,185.04 = 2,634/x
  3. Step 3: Cross multiply
    8,790x = 13,185.04 × 2,634
  4. Step 4: Simplify right side
    8,790x = 34,729,395.36
  5. Step 5: Solve for x
    x = 34,729,395.36/8,790
  6. Step 6: Final answer
    x = 3,951.01

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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.