Home / 3,811.84-5,260.58-2,133.14

Finding the Fourth Proportional to 3,811.84, 5,260.58 and 2,133.14

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Solution

The fourth proportional to 3,811.84, 5,260.58 and 2,133.14 is: 2,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.84 : 5,260.58 = 2,133.14 : x
  2. Step 2: Convert to fraction form
    3,811.84/5,260.58 = 2,133.14/x
  3. Step 3: Cross multiply
    3,811.84x = 5,260.58 × 2,133.14
  4. Step 4: Simplify right side
    3,811.84x = 11,221,572.11
  5. Step 5: Solve for x
    x = 11,221,572.11/3,811.84
  6. Step 6: Final answer
    x = 2,943.87

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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.