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Finding the Fourth Proportional to 3,289.80, 4,539.82 and 1,962.82

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Solution

The fourth proportional to 3,289.80, 4,539.82 and 1,962.82 is: 2,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.80 : 4,539.82 = 1,962.82 : x
  2. Step 2: Convert to fraction form
    3,289.80/4,539.82 = 1,962.82/x
  3. Step 3: Cross multiply
    3,289.80x = 4,539.82 × 1,962.82
  4. Step 4: Simplify right side
    3,289.80x = 8,910,849.49
  5. Step 5: Solve for x
    x = 8,910,849.49/3,289.80
  6. Step 6: Final answer
    x = 2,708.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.