Home / 3,935.17-5,906.40-3,140.56

Finding the Fourth Proportional to 3,935.17, 5,906.40 and 3,140.56

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Solution

The fourth proportional to 3,935.17, 5,906.40 and 3,140.56 is: 4,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.17 : 5,906.40 = 3,140.56 : x
  2. Step 2: Convert to fraction form
    3,935.17/5,906.40 = 3,140.56/x
  3. Step 3: Cross multiply
    3,935.17x = 5,906.40 × 3,140.56
  4. Step 4: Simplify right side
    3,935.17x = 18,549,403.58
  5. Step 5: Solve for x
    x = 18,549,403.58/3,935.17
  6. Step 6: Final answer
    x = 4,713.75

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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.