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Finding the Fourth Proportional to 2,326.80, 3,489.90 and 683.29

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Solution

The fourth proportional to 2,326.80, 3,489.90 and 683.29 is: 1,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.80 : 3,489.90 = 683.29 : x
  2. Step 2: Convert to fraction form
    2,326.80/3,489.90 = 683.29/x
  3. Step 3: Cross multiply
    2,326.80x = 3,489.90 × 683.29
  4. Step 4: Simplify right side
    2,326.80x = 2,384,613.77
  5. Step 5: Solve for x
    x = 2,384,613.77/2,326.80
  6. Step 6: Final answer
    x = 1,024.85

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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.