Home / 2,855.11-3,924.94-2,455.30

Finding the Fourth Proportional to 2,855.11, 3,924.94 and 2,455.30

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Solution

The fourth proportional to 2,855.11, 3,924.94 and 2,455.30 is: 3,375.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.11 : 3,924.94 = 2,455.30 : x
  2. Step 2: Convert to fraction form
    2,855.11/3,924.94 = 2,455.30/x
  3. Step 3: Cross multiply
    2,855.11x = 3,924.94 × 2,455.30
  4. Step 4: Simplify right side
    2,855.11x = 9,636,905.18
  5. Step 5: Solve for x
    x = 9,636,905.18/2,855.11
  6. Step 6: Final answer
    x = 3,375.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.