Home / 3,868.08-5,338.06-2,274.43

Finding the Fourth Proportional to 3,868.08, 5,338.06 and 2,274.43

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Solution

The fourth proportional to 3,868.08, 5,338.06 and 2,274.43 is: 3,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.08 : 5,338.06 = 2,274.43 : x
  2. Step 2: Convert to fraction form
    3,868.08/5,338.06 = 2,274.43/x
  3. Step 3: Cross multiply
    3,868.08x = 5,338.06 × 2,274.43
  4. Step 4: Simplify right side
    3,868.08x = 12,141,041.18
  5. Step 5: Solve for x
    x = 12,141,041.18/3,868.08
  6. Step 6: Final answer
    x = 3,138.78

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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.