Home / 3,107.08-4,287.77-1,709.83

Finding the Fourth Proportional to 3,107.08, 4,287.77 and 1,709.83

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Solution

The fourth proportional to 3,107.08, 4,287.77 and 1,709.83 is: 2,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.08 : 4,287.77 = 1,709.83 : x
  2. Step 2: Convert to fraction form
    3,107.08/4,287.77 = 1,709.83/x
  3. Step 3: Cross multiply
    3,107.08x = 4,287.77 × 1,709.83
  4. Step 4: Simplify right side
    3,107.08x = 7,331,347.06
  5. Step 5: Solve for x
    x = 7,331,347.06/3,107.08
  6. Step 6: Final answer
    x = 2,359.56

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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.