Home / 3,391.24-4,680-1,899.15

Finding the Fourth Proportional to 3,391.24, 4,680 and 1,899.15

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Solution

The fourth proportional to 3,391.24, 4,680 and 1,899.15 is: 2,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.24 : 4,680 = 1,899.15 : x
  2. Step 2: Convert to fraction form
    3,391.24/4,680 = 1,899.15/x
  3. Step 3: Cross multiply
    3,391.24x = 4,680 × 1,899.15
  4. Step 4: Simplify right side
    3,391.24x = 8,888,022
  5. Step 5: Solve for x
    x = 8,888,022/3,391.24
  6. Step 6: Final answer
    x = 2,620.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.