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Finding the Fourth Proportional to 6,640.65, 9,961.70 and 2,482.65

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Solution

The fourth proportional to 6,640.65, 9,961.70 and 2,482.65 is: 3,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.65 : 9,961.70 = 2,482.65 : x
  2. Step 2: Convert to fraction form
    6,640.65/9,961.70 = 2,482.65/x
  3. Step 3: Cross multiply
    6,640.65x = 9,961.70 × 2,482.65
  4. Step 4: Simplify right side
    6,640.65x = 24,731,402.09
  5. Step 5: Solve for x
    x = 24,731,402.09/6,640.65
  6. Step 6: Final answer
    x = 3,724.24

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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.