Home / 3,691.14-5,094.45-2,120.19

Finding the Fourth Proportional to 3,691.14, 5,094.45 and 2,120.19

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Solution

The fourth proportional to 3,691.14, 5,094.45 and 2,120.19 is: 2,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.14 : 5,094.45 = 2,120.19 : x
  2. Step 2: Convert to fraction form
    3,691.14/5,094.45 = 2,120.19/x
  3. Step 3: Cross multiply
    3,691.14x = 5,094.45 × 2,120.19
  4. Step 4: Simplify right side
    3,691.14x = 10,801,201.95
  5. Step 5: Solve for x
    x = 10,801,201.95/3,691.14
  6. Step 6: Final answer
    x = 2,926.25

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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.