Home / 3,106.43-4,661.99-1,645.91

Finding the Fourth Proportional to 3,106.43, 4,661.99 and 1,645.91

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Solution

The fourth proportional to 3,106.43, 4,661.99 and 1,645.91 is: 2,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.43 : 4,661.99 = 1,645.91 : x
  2. Step 2: Convert to fraction form
    3,106.43/4,661.99 = 1,645.91/x
  3. Step 3: Cross multiply
    3,106.43x = 4,661.99 × 1,645.91
  4. Step 4: Simplify right side
    3,106.43x = 7,673,215.96
  5. Step 5: Solve for x
    x = 7,673,215.96/3,106.43
  6. Step 6: Final answer
    x = 2,470.11

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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.