Home / 3,564.88-4,921.76-3,186.07

Finding the Fourth Proportional to 3,564.88, 4,921.76 and 3,186.07

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Solution

The fourth proportional to 3,564.88, 4,921.76 and 3,186.07 is: 4,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,564.88 : 4,921.76 = 3,186.07 : x
  2. Step 2: Convert to fraction form
    3,564.88/4,921.76 = 3,186.07/x
  3. Step 3: Cross multiply
    3,564.88x = 4,921.76 × 3,186.07
  4. Step 4: Simplify right side
    3,564.88x = 15,681,067.54
  5. Step 5: Solve for x
    x = 15,681,067.54/3,564.88
  6. Step 6: Final answer
    x = 4,398.77

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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.