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Finding the Fourth Proportional to 6,604.78, 9,114.67 and 3,620.55

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Solution

The fourth proportional to 6,604.78, 9,114.67 and 3,620.55 is: 4,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.78 : 9,114.67 = 3,620.55 : x
  2. Step 2: Convert to fraction form
    6,604.78/9,114.67 = 3,620.55/x
  3. Step 3: Cross multiply
    6,604.78x = 9,114.67 × 3,620.55
  4. Step 4: Simplify right side
    6,604.78x = 33,000,118.47
  5. Step 5: Solve for x
    x = 33,000,118.47/6,604.78
  6. Step 6: Final answer
    x = 4,996.40

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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.