Home / 2,930.58-4,391.91-1,079.96

Finding the Fourth Proportional to 2,930.58, 4,391.91 and 1,079.96

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Solution

The fourth proportional to 2,930.58, 4,391.91 and 1,079.96 is: 1,618.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.58 : 4,391.91 = 1,079.96 : x
  2. Step 2: Convert to fraction form
    2,930.58/4,391.91 = 1,079.96/x
  3. Step 3: Cross multiply
    2,930.58x = 4,391.91 × 1,079.96
  4. Step 4: Simplify right side
    2,930.58x = 4,743,065.16
  5. Step 5: Solve for x
    x = 4,743,065.16/2,930.58
  6. Step 6: Final answer
    x = 1,618.47

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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.