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Finding the Fourth Proportional to 6,610.08, 9,915.09 and 1,679.72

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Solution

The fourth proportional to 6,610.08, 9,915.09 and 1,679.72 is: 2,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.08 : 9,915.09 = 1,679.72 : x
  2. Step 2: Convert to fraction form
    6,610.08/9,915.09 = 1,679.72/x
  3. Step 3: Cross multiply
    6,610.08x = 9,915.09 × 1,679.72
  4. Step 4: Simplify right side
    6,610.08x = 16,654,519.10
  5. Step 5: Solve for x
    x = 16,654,519.10/6,610.08
  6. Step 6: Final answer
    x = 2,519.56

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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.