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Finding the Fourth Proportional to 6,886.10, 10,329.19 and 1,691.97

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Solution

The fourth proportional to 6,886.10, 10,329.19 and 1,691.97 is: 2,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.10 : 10,329.19 = 1,691.97 : x
  2. Step 2: Convert to fraction form
    6,886.10/10,329.19 = 1,691.97/x
  3. Step 3: Cross multiply
    6,886.10x = 10,329.19 × 1,691.97
  4. Step 4: Simplify right side
    6,886.10x = 17,476,679.60
  5. Step 5: Solve for x
    x = 17,476,679.60/6,886.10
  6. Step 6: Final answer
    x = 2,537.96

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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.