Home / 2,786.08-4,179.84-1,054.72

Finding the Fourth Proportional to 2,786.08, 4,179.84 and 1,054.72

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Solution

The fourth proportional to 2,786.08, 4,179.84 and 1,054.72 is: 1,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.08 : 4,179.84 = 1,054.72 : x
  2. Step 2: Convert to fraction form
    2,786.08/4,179.84 = 1,054.72/x
  3. Step 3: Cross multiply
    2,786.08x = 4,179.84 × 1,054.72
  4. Step 4: Simplify right side
    2,786.08x = 4,408,560.84
  5. Step 5: Solve for x
    x = 4,408,560.84/2,786.08
  6. Step 6: Final answer
    x = 1,582.35

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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.