Home / 3,934.17-5,904.90-3,139.56

Finding the Fourth Proportional to 3,934.17, 5,904.90 and 3,139.56

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Solution

The fourth proportional to 3,934.17, 5,904.90 and 3,139.56 is: 4,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.17 : 5,904.90 = 3,139.56 : x
  2. Step 2: Convert to fraction form
    3,934.17/5,904.90 = 3,139.56/x
  3. Step 3: Cross multiply
    3,934.17x = 5,904.90 × 3,139.56
  4. Step 4: Simplify right side
    3,934.17x = 18,538,787.84
  5. Step 5: Solve for x
    x = 18,538,787.84/3,934.17
  6. Step 6: Final answer
    x = 4,712.25

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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.