Home / 3,723-5,138.54-2,230.98

Finding the Fourth Proportional to 3,723, 5,138.54 and 2,230.98

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Solution

The fourth proportional to 3,723, 5,138.54 and 2,230.98 is: 3,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723 : 5,138.54 = 2,230.98 : x
  2. Step 2: Convert to fraction form
    3,723/5,138.54 = 2,230.98/x
  3. Step 3: Cross multiply
    3,723x = 5,138.54 × 2,230.98
  4. Step 4: Simplify right side
    3,723x = 11,463,979.97
  5. Step 5: Solve for x
    x = 11,463,979.97/3,723
  6. Step 6: Final answer
    x = 3,079.23

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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.