Home / 3,812.20-5,717.96-1,346.90

Finding the Fourth Proportional to 3,812.20, 5,717.96 and 1,346.90

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Solution

The fourth proportional to 3,812.20, 5,717.96 and 1,346.90 is: 2,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.20 : 5,717.96 = 1,346.90 : x
  2. Step 2: Convert to fraction form
    3,812.20/5,717.96 = 1,346.90/x
  3. Step 3: Cross multiply
    3,812.20x = 5,717.96 × 1,346.90
  4. Step 4: Simplify right side
    3,812.20x = 7,701,490.05
  5. Step 5: Solve for x
    x = 7,701,490.05/3,812.20
  6. Step 6: Final answer
    x = 2,020.22

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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.