Home / 3,708.05-5,115.08-2,381.96

Finding the Fourth Proportional to 3,708.05, 5,115.08 and 2,381.96

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Solution

The fourth proportional to 3,708.05, 5,115.08 and 2,381.96 is: 3,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.05 : 5,115.08 = 2,381.96 : x
  2. Step 2: Convert to fraction form
    3,708.05/5,115.08 = 2,381.96/x
  3. Step 3: Cross multiply
    3,708.05x = 5,115.08 × 2,381.96
  4. Step 4: Simplify right side
    3,708.05x = 12,183,905.93
  5. Step 5: Solve for x
    x = 12,183,905.93/3,708.05
  6. Step 6: Final answer
    x = 3,285.80

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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.