Home / 4,109.11-6,161.78-1,641.85

Finding the Fourth Proportional to 4,109.11, 6,161.78 and 1,641.85

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Solution

The fourth proportional to 4,109.11, 6,161.78 and 1,641.85 is: 2,462.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.11 : 6,161.78 = 1,641.85 : x
  2. Step 2: Convert to fraction form
    4,109.11/6,161.78 = 1,641.85/x
  3. Step 3: Cross multiply
    4,109.11x = 6,161.78 × 1,641.85
  4. Step 4: Simplify right side
    4,109.11x = 10,116,710.28
  5. Step 5: Solve for x
    x = 10,116,710.28/4,109.11
  6. Step 6: Final answer
    x = 2,462.02

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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.