Home / 3,379.20-5,069.34-1,431.42

Finding the Fourth Proportional to 3,379.20, 5,069.34 and 1,431.42

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Solution

The fourth proportional to 3,379.20, 5,069.34 and 1,431.42 is: 2,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.20 : 5,069.34 = 1,431.42 : x
  2. Step 2: Convert to fraction form
    3,379.20/5,069.34 = 1,431.42/x
  3. Step 3: Cross multiply
    3,379.20x = 5,069.34 × 1,431.42
  4. Step 4: Simplify right side
    3,379.20x = 7,256,354.66
  5. Step 5: Solve for x
    x = 7,256,354.66/3,379.20
  6. Step 6: Final answer
    x = 2,147.36

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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.