Home / 3,816.40-5,266.84-2,137.71

Finding the Fourth Proportional to 3,816.40, 5,266.84 and 2,137.71

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Solution

The fourth proportional to 3,816.40, 5,266.84 and 2,137.71 is: 2,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.40 : 5,266.84 = 2,137.71 : x
  2. Step 2: Convert to fraction form
    3,816.40/5,266.84 = 2,137.71/x
  3. Step 3: Cross multiply
    3,816.40x = 5,266.84 × 2,137.71
  4. Step 4: Simplify right side
    3,816.40x = 11,258,976.54
  5. Step 5: Solve for x
    x = 11,258,976.54/3,816.40
  6. Step 6: Final answer
    x = 2,950.16

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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.