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Finding the Fourth Proportional to 6,482, 8,945.20 and 3,687.68

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Solution

The fourth proportional to 6,482, 8,945.20 and 3,687.68 is: 5,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482 : 8,945.20 = 3,687.68 : x
  2. Step 2: Convert to fraction form
    6,482/8,945.20 = 3,687.68/x
  3. Step 3: Cross multiply
    6,482x = 8,945.20 × 3,687.68
  4. Step 4: Simplify right side
    6,482x = 32,987,035.14
  5. Step 5: Solve for x
    x = 32,987,035.14/6,482
  6. Step 6: Final answer
    x = 5,089.02

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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.