Home / 3,100.90-4,646.49-1,635.61

Finding the Fourth Proportional to 3,100.90, 4,646.49 and 1,635.61

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Solution

The fourth proportional to 3,100.90, 4,646.49 and 1,635.61 is: 2,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.90 : 4,646.49 = 1,635.61 : x
  2. Step 2: Convert to fraction form
    3,100.90/4,646.49 = 1,635.61/x
  3. Step 3: Cross multiply
    3,100.90x = 4,646.49 × 1,635.61
  4. Step 4: Simplify right side
    3,100.90x = 7,599,845.51
  5. Step 5: Solve for x
    x = 7,599,845.51/3,100.90
  6. Step 6: Final answer
    x = 2,450.85

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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.