Home / 3,785.70-5,676.68-1,412.12

Finding the Fourth Proportional to 3,785.70, 5,676.68 and 1,412.12

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Solution

The fourth proportional to 3,785.70, 5,676.68 and 1,412.12 is: 2,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.70 : 5,676.68 = 1,412.12 : x
  2. Step 2: Convert to fraction form
    3,785.70/5,676.68 = 1,412.12/x
  3. Step 3: Cross multiply
    3,785.70x = 5,676.68 × 1,412.12
  4. Step 4: Simplify right side
    3,785.70x = 8,016,153.36
  5. Step 5: Solve for x
    x = 8,016,153.36/3,785.70
  6. Step 6: Final answer
    x = 2,117.48

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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.