Home / 3,719.17-5,137.79-2,972.15

Finding the Fourth Proportional to 3,719.17, 5,137.79 and 2,972.15

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Solution

The fourth proportional to 3,719.17, 5,137.79 and 2,972.15 is: 4,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.17 : 5,137.79 = 2,972.15 : x
  2. Step 2: Convert to fraction form
    3,719.17/5,137.79 = 2,972.15/x
  3. Step 3: Cross multiply
    3,719.17x = 5,137.79 × 2,972.15
  4. Step 4: Simplify right side
    3,719.17x = 15,270,282.55
  5. Step 5: Solve for x
    x = 15,270,282.55/3,719.17
  6. Step 6: Final answer
    x = 4,105.83

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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.