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Finding the Fourth Proportional to 8,650.80, 12,974.18 and 2,805.84

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Solution

The fourth proportional to 8,650.80, 12,974.18 and 2,805.84 is: 4,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.80 : 12,974.18 = 2,805.84 : x
  2. Step 2: Convert to fraction form
    8,650.80/12,974.18 = 2,805.84/x
  3. Step 3: Cross multiply
    8,650.80x = 12,974.18 × 2,805.84
  4. Step 4: Simplify right side
    8,650.80x = 36,403,459.18
  5. Step 5: Solve for x
    x = 36,403,459.18/8,650.80
  6. Step 6: Final answer
    x = 4,208.10

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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.