Home / 3,107.43-4,287.92-1,709.91

Finding the Fourth Proportional to 3,107.43, 4,287.92 and 1,709.91

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Solution

The fourth proportional to 3,107.43, 4,287.92 and 1,709.91 is: 2,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.43 : 4,287.92 = 1,709.91 : x
  2. Step 2: Convert to fraction form
    3,107.43/4,287.92 = 1,709.91/x
  3. Step 3: Cross multiply
    3,107.43x = 4,287.92 × 1,709.91
  4. Step 4: Simplify right side
    3,107.43x = 7,331,948.74
  5. Step 5: Solve for x
    x = 7,331,948.74/3,107.43
  6. Step 6: Final answer
    x = 2,359.49

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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.