Home / 3,130.25-4,319.73-1,694.61

Finding the Fourth Proportional to 3,130.25, 4,319.73 and 1,694.61

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Solution

The fourth proportional to 3,130.25, 4,319.73 and 1,694.61 is: 2,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.25 : 4,319.73 = 1,694.61 : x
  2. Step 2: Convert to fraction form
    3,130.25/4,319.73 = 1,694.61/x
  3. Step 3: Cross multiply
    3,130.25x = 4,319.73 × 1,694.61
  4. Step 4: Simplify right side
    3,130.25x = 7,320,270.68
  5. Step 5: Solve for x
    x = 7,320,270.68/3,130.25
  6. Step 6: Final answer
    x = 2,338.56

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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.