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Finding the Fourth Proportional to 8,542.77, 12,815.79 and 2,701.05

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Solution

The fourth proportional to 8,542.77, 12,815.79 and 2,701.05 is: 4,052.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.77 : 12,815.79 = 2,701.05 : x
  2. Step 2: Convert to fraction form
    8,542.77/12,815.79 = 2,701.05/x
  3. Step 3: Cross multiply
    8,542.77x = 12,815.79 × 2,701.05
  4. Step 4: Simplify right side
    8,542.77x = 34,616,089.58
  5. Step 5: Solve for x
    x = 34,616,089.58/8,542.77
  6. Step 6: Final answer
    x = 4,052.09

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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.