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Finding the Fourth Proportional to 6,610.05, 9,915.12 and 2,860.95

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Solution

The fourth proportional to 6,610.05, 9,915.12 and 2,860.95 is: 4,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.05 : 9,915.12 = 2,860.95 : x
  2. Step 2: Convert to fraction form
    6,610.05/9,915.12 = 2,860.95/x
  3. Step 3: Cross multiply
    6,610.05x = 9,915.12 × 2,860.95
  4. Step 4: Simplify right side
    6,610.05x = 28,366,662.56
  5. Step 5: Solve for x
    x = 28,366,662.56/6,610.05
  6. Step 6: Final answer
    x = 4,291.44

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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.