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Finding the Fourth Proportional to 1,723.80, 2,584.41 and 682.95

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Solution

The fourth proportional to 1,723.80, 2,584.41 and 682.95 is: 1,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.80 : 2,584.41 = 682.95 : x
  2. Step 2: Convert to fraction form
    1,723.80/2,584.41 = 682.95/x
  3. Step 3: Cross multiply
    1,723.80x = 2,584.41 × 682.95
  4. Step 4: Simplify right side
    1,723.80x = 1,765,022.81
  5. Step 5: Solve for x
    x = 1,765,022.81/1,723.80
  6. Step 6: Final answer
    x = 1,023.91

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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.