Home / 3,426.85-5,140.31-1,234.05

Finding the Fourth Proportional to 3,426.85, 5,140.31 and 1,234.05

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Solution

The fourth proportional to 3,426.85, 5,140.31 and 1,234.05 is: 1,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.85 : 5,140.31 = 1,234.05 : x
  2. Step 2: Convert to fraction form
    3,426.85/5,140.31 = 1,234.05/x
  3. Step 3: Cross multiply
    3,426.85x = 5,140.31 × 1,234.05
  4. Step 4: Simplify right side
    3,426.85x = 6,343,399.56
  5. Step 5: Solve for x
    x = 6,343,399.56/3,426.85
  6. Step 6: Final answer
    x = 1,851.09

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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.