Home / 3,731.24-5,149.24-2,138.12

Finding the Fourth Proportional to 3,731.24, 5,149.24 and 2,138.12

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Solution

The fourth proportional to 3,731.24, 5,149.24 and 2,138.12 is: 2,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.24 : 5,149.24 = 2,138.12 : x
  2. Step 2: Convert to fraction form
    3,731.24/5,149.24 = 2,138.12/x
  3. Step 3: Cross multiply
    3,731.24x = 5,149.24 × 2,138.12
  4. Step 4: Simplify right side
    3,731.24x = 11,009,693.03
  5. Step 5: Solve for x
    x = 11,009,693.03/3,731.24
  6. Step 6: Final answer
    x = 2,950.68

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1.5x scale

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.