Home / 2,861.82-3,949.65-1,743.42

Finding the Fourth Proportional to 2,861.82, 3,949.65 and 1,743.42

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Solution

The fourth proportional to 2,861.82, 3,949.65 and 1,743.42 is: 2,406.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.82 : 3,949.65 = 1,743.42 : x
  2. Step 2: Convert to fraction form
    2,861.82/3,949.65 = 1,743.42/x
  3. Step 3: Cross multiply
    2,861.82x = 3,949.65 × 1,743.42
  4. Step 4: Simplify right side
    2,861.82x = 6,885,898.80
  5. Step 5: Solve for x
    x = 6,885,898.80/2,861.82
  6. Step 6: Final answer
    x = 2,406.13

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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.