Home / 3,855.30-5,320.40-2,283.09

Finding the Fourth Proportional to 3,855.30, 5,320.40 and 2,283.09

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Solution

The fourth proportional to 3,855.30, 5,320.40 and 2,283.09 is: 3,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.30 : 5,320.40 = 2,283.09 : x
  2. Step 2: Convert to fraction form
    3,855.30/5,320.40 = 2,283.09/x
  3. Step 3: Cross multiply
    3,855.30x = 5,320.40 × 2,283.09
  4. Step 4: Simplify right side
    3,855.30x = 12,146,940.62
  5. Step 5: Solve for x
    x = 12,146,940.62/3,855.30
  6. Step 6: Final answer
    x = 3,150.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.