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Finding the Fourth Proportional to 6,620.60, 9,134.78 and 4,849.13

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Solution

The fourth proportional to 6,620.60, 9,134.78 and 4,849.13 is: 6,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.60 : 9,134.78 = 4,849.13 : x
  2. Step 2: Convert to fraction form
    6,620.60/9,134.78 = 4,849.13/x
  3. Step 3: Cross multiply
    6,620.60x = 9,134.78 × 4,849.13
  4. Step 4: Simplify right side
    6,620.60x = 44,295,734.33
  5. Step 5: Solve for x
    x = 44,295,734.33/6,620.60
  6. Step 6: Final answer
    x = 6,690.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.