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Finding the Fourth Proportional to 2,326.12, 3,489.42 and 682.66

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Solution

The fourth proportional to 2,326.12, 3,489.42 and 682.66 is: 1,024.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.12 : 3,489.42 = 682.66 : x
  2. Step 2: Convert to fraction form
    2,326.12/3,489.42 = 682.66/x
  3. Step 3: Cross multiply
    2,326.12x = 3,489.42 × 682.66
  4. Step 4: Simplify right side
    2,326.12x = 2,382,087.46
  5. Step 5: Solve for x
    x = 2,382,087.46/2,326.12
  6. Step 6: Final answer
    x = 1,024.06

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1.5x scale

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.