Home / 3,419.10-5,129.34-1,227.66

Finding the Fourth Proportional to 3,419.10, 5,129.34 and 1,227.66

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Solution

The fourth proportional to 3,419.10, 5,129.34 and 1,227.66 is: 1,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.10 : 5,129.34 = 1,227.66 : x
  2. Step 2: Convert to fraction form
    3,419.10/5,129.34 = 1,227.66/x
  3. Step 3: Cross multiply
    3,419.10x = 5,129.34 × 1,227.66
  4. Step 4: Simplify right side
    3,419.10x = 6,297,085.54
  5. Step 5: Solve for x
    x = 6,297,085.54/3,419.10
  6. Step 6: Final answer
    x = 1,841.74

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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.