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Finding the Fourth Proportional to 8,791.80, 13,192.90 and 3,249.06

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Solution

The fourth proportional to 8,791.80, 13,192.90 and 3,249.06 is: 4,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.80 : 13,192.90 = 3,249.06 : x
  2. Step 2: Convert to fraction form
    8,791.80/13,192.90 = 3,249.06/x
  3. Step 3: Cross multiply
    8,791.80x = 13,192.90 × 3,249.06
  4. Step 4: Simplify right side
    8,791.80x = 42,864,523.67
  5. Step 5: Solve for x
    x = 42,864,523.67/8,791.80
  6. Step 6: Final answer
    x = 4,875.51

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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.