Home / 3,884.33-5,360.39-2,115.98

Finding the Fourth Proportional to 3,884.33, 5,360.39 and 2,115.98

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Solution

The fourth proportional to 3,884.33, 5,360.39 and 2,115.98 is: 2,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.33 : 5,360.39 = 2,115.98 : x
  2. Step 2: Convert to fraction form
    3,884.33/5,360.39 = 2,115.98/x
  3. Step 3: Cross multiply
    3,884.33x = 5,360.39 × 2,115.98
  4. Step 4: Simplify right side
    3,884.33x = 11,342,478.03
  5. Step 5: Solve for x
    x = 11,342,478.03/3,884.33
  6. Step 6: Final answer
    x = 2,920.06

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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.