Home / 3,942.84-5,909.66-2,965.80

Finding the Fourth Proportional to 3,942.84, 5,909.66 and 2,965.80

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Solution

The fourth proportional to 3,942.84, 5,909.66 and 2,965.80 is: 4,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.84 : 5,909.66 = 2,965.80 : x
  2. Step 2: Convert to fraction form
    3,942.84/5,909.66 = 2,965.80/x
  3. Step 3: Cross multiply
    3,942.84x = 5,909.66 × 2,965.80
  4. Step 4: Simplify right side
    3,942.84x = 17,526,869.63
  5. Step 5: Solve for x
    x = 17,526,869.63/3,942.84
  6. Step 6: Final answer
    x = 4,445.24

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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.