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Finding the Fourth Proportional to 6,885.88, 10,329.02 and 1,691.76

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Solution

The fourth proportional to 6,885.88, 10,329.02 and 1,691.76 is: 2,537.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.88 : 10,329.02 = 1,691.76 : x
  2. Step 2: Convert to fraction form
    6,885.88/10,329.02 = 1,691.76/x
  3. Step 3: Cross multiply
    6,885.88x = 10,329.02 × 1,691.76
  4. Step 4: Simplify right side
    6,885.88x = 17,474,222.88
  5. Step 5: Solve for x
    x = 17,474,222.88/6,885.88
  6. Step 6: Final answer
    x = 2,537.69

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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.