Home / 2,305.97-3,178.61-1,507.88

Finding the Fourth Proportional to 2,305.97, 3,178.61 and 1,507.88

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Solution

The fourth proportional to 2,305.97, 3,178.61 and 1,507.88 is: 2,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.97 : 3,178.61 = 1,507.88 : x
  2. Step 2: Convert to fraction form
    2,305.97/3,178.61 = 1,507.88/x
  3. Step 3: Cross multiply
    2,305.97x = 3,178.61 × 1,507.88
  4. Step 4: Simplify right side
    2,305.97x = 4,792,968.51
  5. Step 5: Solve for x
    x = 4,792,968.51/2,305.97
  6. Step 6: Final answer
    x = 2,078.51

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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.