Home / 3,710.20-5,117.97-2,138.02

Finding the Fourth Proportional to 3,710.20, 5,117.97 and 2,138.02

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Solution

The fourth proportional to 3,710.20, 5,117.97 and 2,138.02 is: 2,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.20 : 5,117.97 = 2,138.02 : x
  2. Step 2: Convert to fraction form
    3,710.20/5,117.97 = 2,138.02/x
  3. Step 3: Cross multiply
    3,710.20x = 5,117.97 × 2,138.02
  4. Step 4: Simplify right side
    3,710.20x = 10,942,322.22
  5. Step 5: Solve for x
    x = 10,942,322.22/3,710.20
  6. Step 6: Final answer
    x = 2,949.25

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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.