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Finding the Fourth Proportional to 6,644.21, 9,965.61 and 2,261.57

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Solution

The fourth proportional to 6,644.21, 9,965.61 and 2,261.57 is: 3,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.21 : 9,965.61 = 2,261.57 : x
  2. Step 2: Convert to fraction form
    6,644.21/9,965.61 = 2,261.57/x
  3. Step 3: Cross multiply
    6,644.21x = 9,965.61 × 2,261.57
  4. Step 4: Simplify right side
    6,644.21x = 22,537,874.78
  5. Step 5: Solve for x
    x = 22,537,874.78/6,644.21
  6. Step 6: Final answer
    x = 3,392.11

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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.