Home / 3,118.24-4,680.18-2,788.68

Finding the Fourth Proportional to 3,118.24, 4,680.18 and 2,788.68

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Solution

The fourth proportional to 3,118.24, 4,680.18 and 2,788.68 is: 4,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.24 : 4,680.18 = 2,788.68 : x
  2. Step 2: Convert to fraction form
    3,118.24/4,680.18 = 2,788.68/x
  3. Step 3: Cross multiply
    3,118.24x = 4,680.18 × 2,788.68
  4. Step 4: Simplify right side
    3,118.24x = 13,051,524.36
  5. Step 5: Solve for x
    x = 13,051,524.36/3,118.24
  6. Step 6: Final answer
    x = 4,185.54

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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.