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Finding the Fourth Proportional to 6,610.74, 9,902.61 and 3,690.60

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Solution

The fourth proportional to 6,610.74, 9,902.61 and 3,690.60 is: 5,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.74 : 9,902.61 = 3,690.60 : x
  2. Step 2: Convert to fraction form
    6,610.74/9,902.61 = 3,690.60/x
  3. Step 3: Cross multiply
    6,610.74x = 9,902.61 × 3,690.60
  4. Step 4: Simplify right side
    6,610.74x = 36,546,572.47
  5. Step 5: Solve for x
    x = 36,546,572.47/6,610.74
  6. Step 6: Final answer
    x = 5,528.36

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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.