Home / 3,115.42-4,674.96-2,874.88

Finding the Fourth Proportional to 3,115.42, 4,674.96 and 2,874.88

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Solution

The fourth proportional to 3,115.42, 4,674.96 and 2,874.88 is: 4,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.42 : 4,674.96 = 2,874.88 : x
  2. Step 2: Convert to fraction form
    3,115.42/4,674.96 = 2,874.88/x
  3. Step 3: Cross multiply
    3,115.42x = 4,674.96 × 2,874.88
  4. Step 4: Simplify right side
    3,115.42x = 13,439,949.00
  5. Step 5: Solve for x
    x = 13,439,949.00/3,115.42
  6. Step 6: Final answer
    x = 4,314.01

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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.