Home / 3,833.33-5,289.88-2,154.70

Finding the Fourth Proportional to 3,833.33, 5,289.88 and 2,154.70

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Solution

The fourth proportional to 3,833.33, 5,289.88 and 2,154.70 is: 2,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.33 : 5,289.88 = 2,154.70 : x
  2. Step 2: Convert to fraction form
    3,833.33/5,289.88 = 2,154.70/x
  3. Step 3: Cross multiply
    3,833.33x = 5,289.88 × 2,154.70
  4. Step 4: Simplify right side
    3,833.33x = 11,398,067.21
  5. Step 5: Solve for x
    x = 11,398,067.21/3,833.33
  6. Step 6: Final answer
    x = 2,973.41

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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.