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Finding the Fourth Proportional to 6,605.34, 9,115.65 and 3,621.29

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Solution

The fourth proportional to 6,605.34, 9,115.65 and 3,621.29 is: 4,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.34 : 9,115.65 = 3,621.29 : x
  2. Step 2: Convert to fraction form
    6,605.34/9,115.65 = 3,621.29/x
  3. Step 3: Cross multiply
    6,605.34x = 9,115.65 × 3,621.29
  4. Step 4: Simplify right side
    6,605.34x = 33,010,434.98
  5. Step 5: Solve for x
    x = 33,010,434.98/6,605.34
  6. Step 6: Final answer
    x = 4,997.53

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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.