Home / 3,727.40-5,143.88-2,134.05

Finding the Fourth Proportional to 3,727.40, 5,143.88 and 2,134.05

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Solution

The fourth proportional to 3,727.40, 5,143.88 and 2,134.05 is: 2,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.40 : 5,143.88 = 2,134.05 : x
  2. Step 2: Convert to fraction form
    3,727.40/5,143.88 = 2,134.05/x
  3. Step 3: Cross multiply
    3,727.40x = 5,143.88 × 2,134.05
  4. Step 4: Simplify right side
    3,727.40x = 10,977,260.72
  5. Step 5: Solve for x
    x = 10,977,260.72/3,727.40
  6. Step 6: Final answer
    x = 2,945.02

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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.