Home / 2,727.19-3,763.40-1,515.79

Finding the Fourth Proportional to 2,727.19, 3,763.40 and 1,515.79

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Solution

The fourth proportional to 2,727.19, 3,763.40 and 1,515.79 is: 2,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.19 : 3,763.40 = 1,515.79 : x
  2. Step 2: Convert to fraction form
    2,727.19/3,763.40 = 1,515.79/x
  3. Step 3: Cross multiply
    2,727.19x = 3,763.40 × 1,515.79
  4. Step 4: Simplify right side
    2,727.19x = 5,704,524.09
  5. Step 5: Solve for x
    x = 5,704,524.09/2,727.19
  6. Step 6: Final answer
    x = 2,091.72

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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.