Home / 2,930.54-4,396.37-1,081.80

Finding the Fourth Proportional to 2,930.54, 4,396.37 and 1,081.80

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Solution

The fourth proportional to 2,930.54, 4,396.37 and 1,081.80 is: 1,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.54 : 4,396.37 = 1,081.80 : x
  2. Step 2: Convert to fraction form
    2,930.54/4,396.37 = 1,081.80/x
  3. Step 3: Cross multiply
    2,930.54x = 4,396.37 × 1,081.80
  4. Step 4: Simplify right side
    2,930.54x = 4,755,987.66
  5. Step 5: Solve for x
    x = 4,755,987.66/2,930.54
  6. Step 6: Final answer
    x = 1,622.91

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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.