Home / 3,882.49-5,357.84-2,114.09

Finding the Fourth Proportional to 3,882.49, 5,357.84 and 2,114.09

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Solution

The fourth proportional to 3,882.49, 5,357.84 and 2,114.09 is: 2,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.49 : 5,357.84 = 2,114.09 : x
  2. Step 2: Convert to fraction form
    3,882.49/5,357.84 = 2,114.09/x
  3. Step 3: Cross multiply
    3,882.49x = 5,357.84 × 2,114.09
  4. Step 4: Simplify right side
    3,882.49x = 11,326,955.97
  5. Step 5: Solve for x
    x = 11,326,955.97/3,882.49
  6. Step 6: Final answer
    x = 2,917.45

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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.