Home / 3,816.95-5,267.34-2,138.37

Finding the Fourth Proportional to 3,816.95, 5,267.34 and 2,138.37

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Solution

The fourth proportional to 3,816.95, 5,267.34 and 2,138.37 is: 2,950.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.95 : 5,267.34 = 2,138.37 : x
  2. Step 2: Convert to fraction form
    3,816.95/5,267.34 = 2,138.37/x
  3. Step 3: Cross multiply
    3,816.95x = 5,267.34 × 2,138.37
  4. Step 4: Simplify right side
    3,816.95x = 11,263,521.84
  5. Step 5: Solve for x
    x = 11,263,521.84/3,816.95
  6. Step 6: Final answer
    x = 2,950.92

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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.