Home / 7,799.36-11,691.94-3,415.23

Finding the Fourth Proportional to 7,799.36, 11,691.94 and 3,415.23

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Solution

The fourth proportional to 7,799.36, 11,691.94 and 3,415.23 is: 5,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.36 : 11,691.94 = 3,415.23 : x
  2. Step 2: Convert to fraction form
    7,799.36/11,691.94 = 3,415.23/x
  3. Step 3: Cross multiply
    7,799.36x = 11,691.94 × 3,415.23
  4. Step 4: Simplify right side
    7,799.36x = 39,930,664.25
  5. Step 5: Solve for x
    x = 39,930,664.25/7,799.36
  6. Step 6: Final answer
    x = 5,119.74

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1.5x scale

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.