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Finding the Fourth Proportional to 3,861.67, 5,787.54 and 3,341.65

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Solution

The fourth proportional to 3,861.67, 5,787.54 and 3,341.65 is: 5,008.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.67 : 5,787.54 = 3,341.65 : x
  2. Step 2: Convert to fraction form
    3,861.67/5,787.54 = 3,341.65/x
  3. Step 3: Cross multiply
    3,861.67x = 5,787.54 × 3,341.65
  4. Step 4: Simplify right side
    3,861.67x = 19,339,933.04
  5. Step 5: Solve for x
    x = 19,339,933.04/3,861.67
  6. Step 6: Final answer
    x = 5,008.18

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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.