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Finding the Fourth Proportional to 6,615.30, 9,910.02 and 3,490.62

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Solution

The fourth proportional to 6,615.30, 9,910.02 and 3,490.62 is: 5,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.30 : 9,910.02 = 3,490.62 : x
  2. Step 2: Convert to fraction form
    6,615.30/9,910.02 = 3,490.62/x
  3. Step 3: Cross multiply
    6,615.30x = 9,910.02 × 3,490.62
  4. Step 4: Simplify right side
    6,615.30x = 34,592,114.01
  5. Step 5: Solve for x
    x = 34,592,114.01/6,615.30
  6. Step 6: Final answer
    x = 5,229.11

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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.