Home / 3,189.15-4,401.11-1,929.94

Finding the Fourth Proportional to 3,189.15, 4,401.11 and 1,929.94

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Solution

The fourth proportional to 3,189.15, 4,401.11 and 1,929.94 is: 2,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.15 : 4,401.11 = 1,929.94 : x
  2. Step 2: Convert to fraction form
    3,189.15/4,401.11 = 1,929.94/x
  3. Step 3: Cross multiply
    3,189.15x = 4,401.11 × 1,929.94
  4. Step 4: Simplify right side
    3,189.15x = 8,493,872.06
  5. Step 5: Solve for x
    x = 8,493,872.06/3,189.15
  6. Step 6: Final answer
    x = 2,663.37

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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.