Home / 3,189.18-4,401.11-1,930.22

Finding the Fourth Proportional to 3,189.18, 4,401.11 and 1,930.22

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Solution

The fourth proportional to 3,189.18, 4,401.11 and 1,930.22 is: 2,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.18 : 4,401.11 = 1,930.22 : x
  2. Step 2: Convert to fraction form
    3,189.18/4,401.11 = 1,930.22/x
  3. Step 3: Cross multiply
    3,189.18x = 4,401.11 × 1,930.22
  4. Step 4: Simplify right side
    3,189.18x = 8,495,110.54
  5. Step 5: Solve for x
    x = 8,495,110.54/3,189.18
  6. Step 6: Final answer
    x = 2,663.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.