Home / 3,107.10-4,287.72-1,709.82

Finding the Fourth Proportional to 3,107.10, 4,287.72 and 1,709.82

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Solution

The fourth proportional to 3,107.10, 4,287.72 and 1,709.82 is: 2,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.10 : 4,287.72 = 1,709.82 : x
  2. Step 2: Convert to fraction form
    3,107.10/4,287.72 = 1,709.82/x
  3. Step 3: Cross multiply
    3,107.10x = 4,287.72 × 1,709.82
  4. Step 4: Simplify right side
    3,107.10x = 7,331,229.41
  5. Step 5: Solve for x
    x = 7,331,229.41/3,107.10
  6. Step 6: Final answer
    x = 2,359.51

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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.