Home / 3,816.52-5,267.22-2,138.20

Finding the Fourth Proportional to 3,816.52, 5,267.22 and 2,138.20

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Solution

The fourth proportional to 3,816.52, 5,267.22 and 2,138.20 is: 2,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.52 : 5,267.22 = 2,138.20 : x
  2. Step 2: Convert to fraction form
    3,816.52/5,267.22 = 2,138.20/x
  3. Step 3: Cross multiply
    3,816.52x = 5,267.22 × 2,138.20
  4. Step 4: Simplify right side
    3,816.52x = 11,262,369.80
  5. Step 5: Solve for x
    x = 11,262,369.80/3,816.52
  6. Step 6: Final answer
    x = 2,950.95

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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.