Home / 2,786.46-4,179.58-706.53

Finding the Fourth Proportional to 2,786.46, 4,179.58 and 706.53

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Solution

The fourth proportional to 2,786.46, 4,179.58 and 706.53 is: 1,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.46 : 4,179.58 = 706.53 : x
  2. Step 2: Convert to fraction form
    2,786.46/4,179.58 = 706.53/x
  3. Step 3: Cross multiply
    2,786.46x = 4,179.58 × 706.53
  4. Step 4: Simplify right side
    2,786.46x = 2,953,012.56
  5. Step 5: Solve for x
    x = 2,953,012.56/2,786.46
  6. Step 6: Final answer
    x = 1,059.77

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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.