Home / 2,786.16-4,178.54-1,226.55

Finding the Fourth Proportional to 2,786.16, 4,178.54 and 1,226.55

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Solution

The fourth proportional to 2,786.16, 4,178.54 and 1,226.55 is: 1,839.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.16 : 4,178.54 = 1,226.55 : x
  2. Step 2: Convert to fraction form
    2,786.16/4,178.54 = 1,226.55/x
  3. Step 3: Cross multiply
    2,786.16x = 4,178.54 × 1,226.55
  4. Step 4: Simplify right side
    2,786.16x = 5,125,188.24
  5. Step 5: Solve for x
    x = 5,125,188.24/2,786.16
  6. Step 6: Final answer
    x = 1,839.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.