Home / 3,421.08-5,131.38-1,229.22

Finding the Fourth Proportional to 3,421.08, 5,131.38 and 1,229.22

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Solution

The fourth proportional to 3,421.08, 5,131.38 and 1,229.22 is: 1,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.08 : 5,131.38 = 1,229.22 : x
  2. Step 2: Convert to fraction form
    3,421.08/5,131.38 = 1,229.22/x
  3. Step 3: Cross multiply
    3,421.08x = 5,131.38 × 1,229.22
  4. Step 4: Simplify right side
    3,421.08x = 6,307,594.92
  5. Step 5: Solve for x
    x = 6,307,594.92/3,421.08
  6. Step 6: Final answer
    x = 1,843.74

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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.