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Finding the Fourth Proportional to 6,636.80, 9,158.94 and 3,652.80

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Solution

The fourth proportional to 6,636.80, 9,158.94 and 3,652.80 is: 5,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.80 : 9,158.94 = 3,652.80 : x
  2. Step 2: Convert to fraction form
    6,636.80/9,158.94 = 3,652.80/x
  3. Step 3: Cross multiply
    6,636.80x = 9,158.94 × 3,652.80
  4. Step 4: Simplify right side
    6,636.80x = 33,455,776.03
  5. Step 5: Solve for x
    x = 33,455,776.03/6,636.80
  6. Step 6: Final answer
    x = 5,040.95

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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.