Home / 4,179.81-5,763.15-2,687.79

Finding the Fourth Proportional to 4,179.81, 5,763.15 and 2,687.79

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Solution

The fourth proportional to 4,179.81, 5,763.15 and 2,687.79 is: 3,705.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.81 : 5,763.15 = 2,687.79 : x
  2. Step 2: Convert to fraction form
    4,179.81/5,763.15 = 2,687.79/x
  3. Step 3: Cross multiply
    4,179.81x = 5,763.15 × 2,687.79
  4. Step 4: Simplify right side
    4,179.81x = 15,490,136.94
  5. Step 5: Solve for x
    x = 15,490,136.94/4,179.81
  6. Step 6: Final answer
    x = 3,705.94

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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.